Practice the AP 6th Class Maths Bits with Answers Chapter 9 2D-3D Shapes on a regular basis so that you can attempt exams with utmost confidence.
AP State Syllabus 6th Class Maths Bits 9th Lesson 2D-3D Shapes with Answers
I. Choose the correct answer and write it in the brackets.
Question 1.
A 2-dimensional closed shape formed by straight lines is called ……………….
A) Plane
B) Space
C) Polygon
D) None
Answer:
C) Polygon
Question 2.
Polygon means ……………..
A) Many sides
B) Two sides
C) One side
D) None
Answer:
A) Many sides
Question 3.
Many sided figure is called ………………
A) Space
B) Polygon
C) Angle
D) Plane
Answer:
B) Polygon
Question 4.
Four sided figure is called …………………
A) Triangle
B) Pentagon
C) Hexagon
D) Quadrilateral
Answer:
D) Quadrilateral
Question 5.
Seven sided figure is called ……………….
A) Pentagon
B) Octagon
C) Heptagon
D) Nonagon
Answer:
C) Heptagon
Question 6.
Ten sided figure is known as ………………
A) Decagon
B) Nonagon
C) Septagon
D) Hexagon
Answer:
A) Decagon
Question 7.
Triangle has ……………….
A) Three sides
B) Three angles
C) Three vertices
D) All of these
Answer:
D) All of these
Question 8.
Triangle can divides the points on the plane into …………… parts.
A) 4
B) 5
C) 3
D) 2
Answer:
C) 3
Question 9.
The length of curved edge is called ………………
A) Radius
B) Circle
C) Circumference
D) Diameter
Answer:
C) Circumference
Question 10.
A chord which passes through the centre of the circle is called …………………
A) Radius
B) Diameter
C) Circle
D) Chord
Answer:
B) Diameter
Question 11.
A line which divides the figure into two identical parts is known as ………………..
A) Line of symmetry
B) Line of straight
C) Line of diameter
D) Circumference
Answer:
A) Line of symmetry
Question 12.
The shapes which have length, breadth and height (or) depth are called ……………….
A) 2D shapes
B) 4D shapes
C) 3D shapes
D) 5D shapes
Answer:
C) 3D shapes
Question 13.
Example for the cuboidal shape
A) Triangle
B) Hexagon
C) Ball
D) Eraser
Answer:
D) Eraser
Question 14.
If length, breadth and height are different, then die 3D-shape is known as
A) Cube
B) Cuboid
C) Cylinder
D) Prism
Answer:
B) Cuboid
Question 15.
Example for a cylinder is ……………….
A) Pen
B) Candle
C) Pencil
D) All of the above
Answer:
D) All of the above
Question 16.
Example for a sphere is ………………
A) Balls
B) Laddoos
C) Marbles
D) All of the above
Answer:
D) All of the above
Question 17.
Number of faces of a cube ……………..
A) 6
B) 8
C) 12
D) 3
Answer:
A) 6
Question 18.
Cuboid has …………… edges.
A) 6
B) 8
C) 12
D) 3
Answer:
C) 12
Question 19.
Vertices of a cube are ……………..
A) 6
B) 8
C) 12
D) 3
Answer:
B) 8
Question 20.
Pyramid has …………… faces.
A) 5
B) 6
C) 8
D) 12
Answer:
A) 5
Question 21.
Euler’s formula is ……………….
A) F + E = V + 2
B) F + V = E + 2
C) F + 2 = V + E
D) E + 2 = F + V
Answer:
B) F + V = E + 2
II. Fill in the blanks.
1. Three sided figure is called …………………
Answer:
Triangle
2. Five sided figure is called ………………
Answer:
Pentagon
3. Six sided figure is called ……………….
Answer:
Hexagon
4. The least number of sides needed to form a polygon is ………………..
Answer:
Three
5. The simplest closed figure formed by three line segments is called a ………………….
Answer:
Triangle
6. A triangle is denoted by the symbol …………………..
Answer:
7. Locus of the points which is at equidistant from a fixed paint is called ……………….
Answer:
Circle
8. The distance from the centre to any point on the circumference of circle is called ……………
Answer:
Radius
9. Middle point of the diameter is known as ………………
Answer:
Centre
10. A line segment joining two points on the circumference of the circle is called ………………….
Answer:
Chord
11. The part of a circle between the two points is …………………
Answer:
Arc
12. The region in the interior of a circle enclosed by the boundary is …………………
Answer:
Circular region
13. Another name of line of symmetry is …………………
Answer:
Axis of symmetry
14. The shapes which have only length and breadth are known as …………………
Answer:
2D shapes
15. The 3D shape in which has length, breadth and height are equal is …………………
Answer:
Cube
16. Example for cone shape …………………
Answer:
Joker cap/ Heap of grains
17. Example for pyramid shape ………………….
Answer:
Egypt Mummy
18. The shape of dice is …………………
Answer:
Cube
19. No. of edges of square pyramid …………………
Answer:
8
20. Edges of a sphere ………………..
Answer:
0 (No edges)
III. Match the following:
A)
Number of sides
1) 10
2) 3
3) 6
4) 9
5) 4
6) 5
Name of the polygon
a) Quadrilateral
b) Nonagon
c) Triangle
d) Decagon
e) Hexagon
f) Pentagon
Answer:
1) 10 – d) Decagon
2) 3 – c) Triangle
3) 6 – e) Hexagon
4) 9 – b) Nonagon
5) 4 – a) Quadrilateral
6) 5 – f) Pentagon
B)
1) Cube
2) Cylinder
3) Square pyramid
4) Cone
5) Sphere
6) Rectangular prism
Number of edges
a) 12
b) 8
c) 1
d) 0
e) 9
f) 2
Answer:
1) Cube – a) 12
2) Cylinder – f) 2
3) Square pyramid – b) 8
4) Cone – c) 1
5) Sphere – d) 0
6) Rectangular prism – a) 12
C)
1) Cube
2) Pyramid
3) Cone
4) Cylinder
5) Triangle
6) Heptagon
Number of vertices
a) 1
b) 0
c) 5
d) 7
e) 8
f) 3
Answer:
1) Cube – e) 8
2) Pyramid – c) 5
3) Cone – a) 1
4) Cylinder – b) 0
5) Triangle – f) 3
6) Heptagon – d) 7