{"id":22722,"date":"2022-01-18T15:01:23","date_gmt":"2022-01-18T09:31:23","guid":{"rendered":"https:\/\/apboardsolutions.guru\/?p=22722"},"modified":"2022-01-18T15:01:23","modified_gmt":"2022-01-18T09:31:23","slug":"ap-board-7th-class-maths-solutions-chapter-12-intext-questions-new-syllabus","status":"publish","type":"post","link":"https:\/\/apboardsolutions.guru\/ap-board-7th-class-maths-solutions-chapter-12-intext-questions-new-syllabus\/","title":{"rendered":"AP Board 7th Class Maths Solutions Chapter 12 Symmetry InText Questions"},"content":{"rendered":"

SCERT\u00a0AP 7th Class Maths Solutions Pdf<\/a> Chapter 12 Symmetry InText Questions and Answers.<\/p>\n

AP State Syllabus 7th Class Maths Solutions 12th Lesson\u00a0Symmetry InText Questions<\/h2>\n

[Page No. 99]<\/span><\/p>\n

Look at the following picture and speak about what you have noticed regarding symmetry in the picture.
\n\"AP
\nQuestion 1.
\nWhat do you observe in this picture?
\nDucks have symmetry.
\nWall paintings have symmetry.
\nButterfly has symmetry.
\nClock tower and gaint wheels have symmetry.<\/p>\n

Question 2.
\nCan you name the different shapes in picture?
\nAnswer:
\nHexagon, Circle, Rectangle, etc.<\/p>\n

Question 3.
\nWhich figures are looking attractive and beautiful? Why?
\nAnswer:
\nFlooring, Gate arch and wall painting are beautiful as they have lines of symmetry.<\/p>\n

\"AP<\/p>\n

Question 4.
\nWhich figures are in symmetry?
\nAnswer:
\nDucks, wall paintings, gaint wheel and the clock tower have symmetry.<\/p>\n

Question 5.
\nCan you draw line(s) of symmetry for them?
\nAnswer:
\nYes.<\/p>\n

[Page No. 100]<\/span><\/p>\n

Look at the following figures. If we fold them exactly to their equal halves, one half of each figure exactly coincides with other half.
\n\"AP
\nQuestion 1.
\nWhat do we call such figures?
\nAnswer:
\nSymmetric figures or shapes.<\/p>\n

Question 2.
\nWhat do we call the line along which we fold the figures so that, one half coincides with the other?
\nAnswer:
\nLine of symmetry.<\/p>\n

Let’s Explore [Page No.102]<\/span><\/p>\n

Question 1.
\nFind relation between the number of sides of regular polygon and its lines of symmetry.
\nAnswer:
\n\"AP
\nFrom the above table, we conclude that the number of sides of a regular polygon is equal to its number of lines of symmetry.<\/p>\n

\"AP<\/p>\n

Question 2.
\nHow many lines of symmetry can be drawn to a circle?
\nAnswer:
\nNumber of lines of symmetry can be drawn to a circle are infinite.<\/p>\n

Let’s Think [Page No. 103]<\/span><\/p>\n

Question 1.
\nDraw any three shapes basing on below sentences :
\n(i) no line of symmetry
\nAnswer:
\n\"AP<\/p>\n

(ii) one line of symmetry
\nAnswer:
\n\"AP<\/p>\n

(iii) two lines of symmetry
\nAnswer:
\n\"AP<\/p>\n

(iv) three lines of symmetry
\nAnswer:
\n\"AP<\/p>\n

Check Your Progress [Page No. 105]<\/span><\/p>\n

Find whether the following letters of the English alphabet have rotational symmetry or not. If yes, find the point of rotational symmetry (approximately), and also order of rotational symmetry.
\n\"AP
\nAnswer:
\n\"AP<\/p>\n

Check Your Progress [Page No. 107]<\/span><\/p>\n

Look at the following pictures and write their angle of symmetry and order of symmetry.
\n\"AP
\nAnswer:
\n(i) Spinner: Angle of symmetry = 120\u00b0
\nOrder of symmetry = 3<\/p>\n

(ii) Gaint wheel : Angle of symmetry = 60\u00b0
\nOrder of symmetry = 6<\/p>\n

\"AP<\/p>\n

[Page No. 108]<\/span><\/p>\n

Tesselations: The majority of the objects what we use in daily life have atleast one type of symmetry. Most of the machine made products are symmetric.<\/p>\n

Observe these patterns :
\n\"AP
\n(i) Where do you see these?
\nAnswer:
\nWe see these patterns in floor designs and fabric painting etc.<\/p>\n

(ii) How these patterns are formed? Are they symmetric as whole?
\nDoes the basic figure which is used to form the tessellations symmetric?
\nAnswer:
\nYou can observe that only some patterns have symmetry as a whole as in fig(i) and (ii), through the basic figures\/unit figures are symmetric. Observe the fig(iii). You may notice that the two shapes can observe as \u2018Basic or unit figures\u2019 which is square or hexagon used to draw tessellation.<\/p>\n

Usually, these patterns are formed by arranging congruent figures side by side in all the directions to spread upon an area without any overlaps or gaps. This is called tessellation. This enhances the beauty of the diagrams.<\/p>\n

Let\u2019s Explore [Page No. 109]<\/span><\/p>\n

Fill the following with different colours to get beautiful tessellation patterns.
\n\"AP
\nAnswer:
\nNot needed.
\nStudent should colour it on his own.<\/p>\n

Let’s Explore [Page No. 109]<\/span><\/p>\n

Construct a square having side 3cm. Draw all possible lines of symmetry. (Steps of construction is not necessary)
\nAnswer:
\n\"AP<\/p>\n

    \n
  1. Let \u25a2ABCD be the square with side 3 cm.<\/li>\n
  2. AC, BD, LM and PQ are lines of symmetry.<\/li>\n<\/ol>\n

    Examples:<\/span><\/p>\n

    Question 1.
    \nIf an equilateral triangle ABC is rotated through 360\u00b0 about the point of rotation ‘P’ (i.e., point of intersection of angle bisectors), it attains the original form three times upon rotation through 120\u00b0, 240\u00b0 and 360\u00b0 as shown below.
    \nAnswer:
    \n\"AP
    \nClearly, the above figure possesses a rotational symmetry of order 3.<\/p>\n

    \"AP<\/p>\n

    Question 2.
    \nWhile rotating the following figure through 360\u00b0 about the point ‘O’ (mid-point of BC), it attains the original form twice (upon rotation through 180\u00b0 and 360\u00b0) as shown below.
    \nAnswer:
    \n\"AP
    \nClearly, the above given figure possesses a rotational symmetiy of order 2.<\/p>\n

    Question 3.
    \nCheck whether the letter ‘S’ has point symmetry.
    \n\"AP
    \nAnswer:
    \nYes, it has a point symmetry.
    \nBecause, in the given figure, we have
    \ni) Every part of the letter has a matching part are at the same distance from the central point.
    \nii) The part of the alphabet and its matching part are in the opposite direction.<\/p>\n

    [Page No- 111]<\/span><\/p>\n

    The image of an object as seen in a mirror is known as mirror image.\/In mirror image of an object, right side of the object appears at left side and vice versa. There are some objects whose mirror images are identical to the objects. For example, 11 capital English alphabets whose mirror images remain unchanged. They are A, H, I, M, O, T, U, V, W, X and Y.<\/p>\n

    Mirror Images of English Alphabets and some numbers :
    \n\"AP<\/p>\n

    Practice Questions [Page No. 112]<\/span><\/p>\n

    Choose the correct mirror image of the given words.<\/p>\n

    Question 1.
    \nLATERAL
    \n\"AP
    \nAnswer:
    \n(b)<\/p>\n

    Question 2.
    \nQUANTITATIVE
    \n\"AP
    \nAnswer:
    \n(d)<\/p>\n

    Question 3.
    \nJUDGEMENT
    \n\"AP
    \nAnswer:
    \n(c)<\/p>\n

    \"AP<\/p>\n

    Question 4.
    \nEMANATE
    \n\"AP
    \nAnswer:
    \n(b)<\/p>\n

    Question 5.
    \nKALINGA261B
    \n\"AP
    \nAnswer:
    \n(d)<\/p>\n

    Question 6.
    \nCOLONIAL
    \n\"AP
    \nAnswer:
    \n(d)<\/p>\n

    Question 7.
    \nBR4AQ16HI
    \n\"AP
    \nAnswer:
    \n(a)<\/p>\n

    Question 8.
    \nR4E3N2U
    \n\"AP
    \nAnswer:
    \n(c)<\/p>\n

    Question 9.
    \nDL3N469F
    \n\"AP
    \nAnswer:
    \n(b)<\/p>\n

    Question 40.
    \nMIRROR
    \n\"AP
    \nAnswer:
    \n(d)<\/p>\n

    Water images [Page No. 112]<\/span><\/p>\n

    The reflection of an object as seen in water is known , as water image. The upper part of the object seen downward and vice-versa. There a re some objects whose water images are identical to the objects. For example, 9 cap ital English alphabets given below, whose water images remain unchanged. They ar e B, C, D, E, H, I, K, O and X.
    \n\"AP<\/p>\n

    \"AP<\/p>\n

    Practice Questions [Page No. 113]<\/span><\/p>\n

    Choose the correct water image of the given words.<\/p>\n

    Question 1.
    \nKICK
    \n\"AP
    \nAnswer:
    \n(d)<\/p>\n

    Question 2.
    \nUPKAR
    \n\"AP
    \nAnswer:
    \n(a)<\/p>\n

    Question 3.
    \nKID
    \n\"AP
    \nAnswer:
    \n(b)<\/p>\n

    Question 4.
    \nSUBHAM
    \n\"AP
    \nAnswer:
    \n(c)<\/p>\n

    Question 5.
    \nCHIDE
    \n\"AP
    \nAnswer:
    \n(d)<\/p>\n

    Question 6.
    \nHIKE
    \n\"AP
    \nAnswer:
    \n(a)<\/p>\n

    Question 7.
    \nCOT5E
    \n\"AP
    \nAnswer:
    \n(a)<\/p>\n

    \"AP<\/p>\n

    Question 8.
    \nab45CD67
    \n\"AP
    \nAnswer:
    \n(b)<\/p>\n

    Question 9.
    \nabc
    \n\"AP
    \nAnswer:
    \n(a)<\/p>\n

    Question 10.
    \n01234
    \n\"AP
    \nAnswer:
    \n(a)<\/p>\n

    Mirror image of the clock [Page No. 114]<\/span><\/p>\n

    1. A clock is a device provided with three hands an hour hand, minute hand and second hand.
    \nHours hand also known as short hand and minutes hand is also known as long hand.
    \n\"AP<\/p>\n

    2. The face of the clock is divided into 12 equal divisions.
    \nThe angular space between any two consecutive divisions has further divided into five more divisions.
    \n\"AP
    \nLet us observe the following images of a clocks and their mirror images :
    \nCase I: To find the time in the mirror image subtract the actual time from 11 hours 60 minutes.
    \n\"AP
    \nExample 1:
    \nIf actual time in clock is 9 hours 30 minutes then, what is’the time shown in mirror?
    \nAnswer:
    \n11 hrs 60 min – 09 hrs 30 min – 2 hrs 30 min<\/p>\n

    \"AP<\/p>\n

    Example 2 :
    \nIf actual time in clock is 7 hours, then what is the time shown in mirror?
    \nAnswer:
    \n11 hrs 60 min – 07 hrs 00 min = 4 hrs 60 min = 5 hrs (1 hour \u2014 60 minutes)<\/p>\n

    Case II : If the time in clock is between 12 hrs and 01 hr then to find the time in the mirror image subtract the actual time from 23 hr 60 min.
    \nExample :
    \nIf actual time in clock is 12 hours T5 minutes, then what is the time shown in mirror?
    \nAnswer:
    \n23 hrs 60 min \u2014 12 hrs 15 min =11 hrs 45 min<\/p>\n

    Practice Questions [Page No. 114]<\/span><\/p>\n

    Choose the correct mirror image of the given words.<\/p>\n

    Question 1.
    \nIf actual time in dock is 06 hours 10 minutes, then what is the time shown in mirror?
    \n(a) 3 hr:s 50 min
    \n(b) 4 hrs 50 min
    \n(c) 5 hrs 50 min
    \n(d) 6 hrs 50 min
    \nAnswer:
    \n(c) 5 hrs 50 min<\/p>\n

    Question 2.
    \nIf actual time in clock is 03 hours 54 minutes, then what is the time shown in mirror?
    \n(a) 8 hrs 06 min
    \n(b) 9 hrs 06 min
    \n(c) 8 hrs 54 min
    \n(d) 9 hrs 54 min
    \nAnswer:
    \n(a) 8 hrs 06 min<\/p>\n

    Question 3.
    \nIf actual time in clock is 08 hours 26 minutes, then what is the time shown in mirror?
    \n(a) 6 hrs 34 min
    \n(b) 3 hrs 34 min
    \n(c) 1 hr 34 min
    \n(d) 3 hrs 36 min
    \nAnswer:
    \n(b) 3 hrs 34 min<\/p>\n

    \"AP<\/p>\n

    Question 4.
    \nIf actual! time in clock is 4 hours, then what is the time shown in mirror?
    \n(a) 7 hrs
    \n(b) 7 hrs 30 min
    \n(c) 8 hrs
    \n(d) 8 hrs 30 min
    \nAnswer:
    \n(c) 8 hrs<\/p>\n

    Question 5.
    \nIf actual time in dock is 10’o clock, then what is the time shown in mirror?
    \n(a) 2 hrs
    \n(b) 3 hrs
    \n(c) 4 hrs
    \n(d) 5 hrs
    \nAnswer:
    \n(a) 2 hrs<\/p>\n

    Question 6.
    \nIf the time shown in mirror is 10 hours 05 minutes, then what is the actual time in clock?
    \n(a) 1 hrs 55 min
    \n(b) 1 hrs 35 min
    \n(c) 1 hrs 25 min
    \n(d) 12 hrs 15 min
    \nAnswer:
    \n(a) 1 hrs 55 min<\/p>\n

    Question 7.
    \nIf the time shown in mirror is 02 hours 47 minutes, then what is the actual time in clock?
    \n(a) 6 hrs 13 min
    \n(b) 7 hrs 13 min
    \n(c) 8 hrs 13 min
    \n(d) 9 hrs 13 min
    \nAnswer:
    \n(d) 9 hrs 13 min<\/p>\n

    Question 8.
    \nIf actual time in clock is 11 hours 45 minutes, then what is the time shown in mirror?
    \n(a) 1 hrs 15 min
    \n(b) 3 hrs 15 min
    \n(c) 6 hrs 15 min
    \n(d) 12 hrs 15 min
    \nAnswer:
    \n(d) 12 hrs 15 min<\/p>\n

    Question 9.
    \nIf actual time in clock is 12 hours 45 minutes, then what is the time shown in mirror?
    \n(a) 9 hrs 15 min
    \n(b) 10 hrs 15 min
    \n(c) 11 hrs 15 min
    \n(d) 12 hrs 15 min
    \nAnswer:
    \n(c) 11 hrs 15 min<\/p>\n

    \"AP<\/p>\n

    Question 10.
    \nIf actual time in clock is 12 hours 12 minutes, then what is the time shown in mirror?
    \n(a) 11 hrs 42 min
    \n(b) 11 hrs 48 min
    \n(c) 10 hrs 48 min
    \n(d) 12 hrs 42 min
    \nAnswer:
    \n(b) 11 hrs 48 min<\/p>\n","protected":false},"excerpt":{"rendered":"

    SCERT\u00a0AP 7th Class Maths Solutions Pdf Chapter 12 Symmetry InText Questions and Answers. AP State Syllabus 7th Class Maths Solutions 12th Lesson\u00a0Symmetry InText Questions [Page No. 99] Look at the following picture and speak about what you have noticed regarding symmetry in the picture. Question 1. What do you observe in this picture? Ducks have …<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[9],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/22722"}],"collection":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/comments?post=22722"}],"version-history":[{"count":5,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/22722\/revisions"}],"predecessor-version":[{"id":22769,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/22722\/revisions\/22769"}],"wp:attachment":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/media?parent=22722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/categories?post=22722"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/tags?post=22722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}