Practice the AP 8th Class Maths Bits with Answers Chapter 9 Area of Plane Figures on a regular basis so that you can attempt exams with utmost confidence.

AP State Syllabus 8th Class Maths Bits 9th Lesson Area of Plane Figures with Answers

Question 1.
π = ……………….
A) $$\frac{22}{9}$$
B) $$\frac{22}{7}$$
C) $$\frac{21}{91}$$
D) $$\frac{22}{3}$$
B) $$\frac{22}{7}$$

Question 2.
Circumference of circle = …………………
A) 2πr
B) πr
C) $$\frac{\pi \mathrm{r}}{2}$$
D) πr2
A) 2πr

Question 3.
Each exterior angle of an equilateral triangle is …………….
A) 70°
B) 60°
C) 100°
D) 120°
D) 120°

Question 4.
Number of diagonals in a Quadrilateral is ………………
A) 2
B) 4
C) 3
D) 1
A) 2

Question 5.
Area of Trapezium =
A) $$\frac {1}{2}$$ (a + b)
B) $$\frac {1}{2}$$ h (a + b)
C) $$\frac{a+b}{4}$$
D) $$\frac {1}{4}$$ h (a + b)
B) $$\frac {1}{2}$$ h (a + b)

Question 6.
Area of circle = ………………….
A) πr
B) 2πr
C) πr2
D) $$\frac{\pi \mathrm{r}}{2}$$
C) πr2

Question 7.
Perimeter of Semi circle is …………………
A) πr2
B) $$\frac{\pi}{\mathrm{r}}$$
C) r + π
D) πr
D) πr

Question 8.
Area of sector is ………………..
A) lr
B) $$\frac{l \mathbf{r}}{2}$$
C) $$\frac{l+r}{2}$$
D) $$\frac{l}{2}$$
C) $$\frac{l+r}{2}$$

Question 9.
Central angle of circle is ………………..
A) 160°
B) 300°
C) 360°
D) 180°
C) 360°

Question 10.
Diameter of a circle is 8.2 cm then its radius is ……………. cm
A) 4.5
B) 5.4
C) 4.1
D) 3.2
C) 4.1

Question 11.
Sum of the angles in a triangle is ………………..
A) 130°
B) 170°
C) 160°
D) 180°
D) 180°

Question 12.
Side of a square is 7 cm then its area is ………………. cm2
A) 49
B) 60
C) 80
D) 94
A) 49

Question 13.
Area of the triangle is ……………..
A) a + b
B) $$\frac {1}{2}$$ b + h
C) $$\frac {1}{2}$$ bh
D) bh
C) $$\frac {1}{2}$$ bh

Question 14.
Area of parallelogram is ………………..
A) bh
B ) $$\frac {1}{2}$$ bh
C) $$\frac {1}{2}$$ a + b
D) $$\frac{\mathrm{ab}}{4}$$
A) bh

Question 15.
Number of triangles in the figure is …………………
A) 7
B) 2
C) 4
D) 3
D) 3

Question 16.
Number of rectangles in the figure is …………………
A) 3
B) 4
C) 5
D) 6
A) 3

Question 17.
Number of Trapeziums in the figure is ………………….
A) 6
B) 2
C) 4
D) 3
B) 2

Question 18.
In a circle d = 28 cm then A = ……………… cm2
A) 216
B) 161
C) 606
D) 616
D) 616

Question 19.
In the given figure area of Δ ABC = 10 cm2 then area of parallelogram is ………………… cm2

A) 60
B) 20
C) 80
D) 40
B) 20

Question 20.
In a Quadrilateral d = 6 cm, h1 = 5 cm, h2 = 3 cm then A = ……………….. cm2
A) 16
B) 18
C) 24
D) 19
C) 24

Question 21.
Area of Rhombus is ………………….
A) $$\frac{1}{2}$$ d1 d2
B) $$\frac{\mathrm{d}_{1} \mathrm{~d}_{2}}{4}$$
C) $$\frac{1}{2}$$ d1 $$\frac{\mathrm{d}_{2}}{3}$$
D) d12 . d22
A) $$\frac{1}{2}$$ d1 d2

Question 22.
In the given figure area of Δ ABC = ………………… cm2

A) 12
B) 6
C) 11
D) 7
B) 6

Question 23.
In a Rectangle l = 20 cm, b = 14 cm then A = ……………….. cm2
A) 150
B) 170
C) 180
D) 280
D) 280

Question 24.
Area of sector = ………………
A)  πr2
B)  × 2 π r
C)  × 3 π r
D)  × πr2
A)  πr2

Question 25.
Area of square is 1225 cm2 then its side is ……………… cm
A) 25
B) 15
C) 45
D) 35
D) 35

Question 26.
Area of adjacent figure is……………….. cm2

A) 64
B) 84
C) 74
D) 93
A) 64

Question 27.
Area of parallelogram is 50 cm2 and a diagonal is drawn to it, then the area of triangle so formed is cm2
A) 19
B) 16
C) 25
D) 15
C) 25

Question 28.
In the figure area of Right angle triangle ABC = ………………… cm2

A)10
B) 8
C) 12
D) 6
D) 6

Question 29.
Diagonals of a Rhombus are 6 cm and 7 cm then area = ……………… cm2
A) 19
B) 16
C) 13
D) 21
D) 21

Question 30.
Which of the following figure represents a sector ?

Question 31.
In a circle r = 14 cm then area of Quadrant circle is ………………… cm2
A) 164
B) 154
C) 110
D) 150
B) 154

Question 32.
Area of ring is ……………… cm2
A) π (R – r)
B) π (R + r)
C) π (R2 – r2)
D) π R2 – r2
C) π (R2 – r2)

Question 33.
Which of the following figure represents concentric circles ?

Question 34.
Length of arc of a sector is 16 cm and radius of a circle is 7 cm then area of sector is …………….. cm2
A) 56
B) 46
C) 16
D) 36
A) 56

Question 35.
Length of arc of a sector is …………………
A) $$\frac{\mathrm{x}^{\circ}}{360^{\circ}}$$ × 2 π r
B) $$\frac{\mathrm{x}^{\circ}}{360^{\circ}}$$ × π r
C) $$\frac{\mathrm{x}^{\circ}}{180^{\circ}}$$ × π r2
D) None
A) $$\frac{\mathrm{x}^{\circ}}{360^{\circ}}$$ × 2 π r

Question 36.
In a triangle b = 5 cm, h = 10 cm then area is ……………. cm2
A) 19
B) 15
C) 25
D) 20
C) 25

Question 37.
In a Rhombus the diagonals are 2a and 4b unite then its area is …………….. square unite.
A) 2ab
B) 4ab
C) 3ab
D) ab
B) 4ab

Question 38.
In a circle d = 7 cm then its area is …………….. cm2
A) 10
B) 6
C) 18
D) None
D) None

Question 39.
In a Ring the radii of outer and inner are 15 cm and 8 cm then the width is ……………….. cm
A) 7
B) 3
C) 6
D) 1
A) 7

Question 40.
c : d = ……………………
A) 180°
B) $$\frac{\pi}{2}$$
C) π
D) 90°
C) π

Question 41.
The side of an equilateral triangle is ‘a’ units then its area is ……………. square units.
A) $$\frac{\sqrt{3}}{4}$$ a2
B) $$\frac{\sqrt{3}}{2}$$ a
C) $$\frac{\sqrt{3}}{7}$$ a2
D) $$\frac{\sqrt{3}}{6}$$ a2
A) $$\frac{\sqrt{3}}{4}$$ a2

Question 42.
The side of an equilateral triangle is’a’ units then its height is ……………….. units.
A) $$\frac{\sqrt{3}}{4}$$ a
B) $$\frac{\sqrt{3}}{2}$$ a
C) $$\frac{\sqrt{3}}{4}$$ a2
D) $$\frac{2}{\sqrt{3}}$$ a
B) $$\frac{\sqrt{3}}{2}$$ a

Question 43.
The area of adjacent figure is ……………….. cm2

A) 213
B) 103
C) 252
D) 203
C) 252

Question 44.
Diagonal of a square is 9√3 cm then its area is ……………….. cm2
A) 90
B) 70
C) 37
D) 81
D) 81

Question 45.
In the given figure there are two semicircles. Radius of big semicircle is 42 cm then the area of shaded portion is ………………… cm2

A) 300.5
B) 900.3
C) 346.5
D) 841.5
C) 346.5

Question 46.
Diagonal of a square is 2.8 cm then its area is …………………. cm2.
A) 2.95
B) 3.92
C) 8.9
D) 5.3
B) 3.92

Question 47.
1 cm2 = ……………………… mm2
A) 10
B) 2,000
C) 1,000
D) 100
D) 100

Question 48.
1 hectare = ………………….. m2.
A) 10,000
B) 2,000
C) 3,000
D) 1,000
A) 10,000

Question 49.
Area of triangle = 600 cm2, height =15 cm then base = ………………… cm.
A) 19
B) 16
C) 80
D) 10
C) 80

Question 50.
Area of triangle is 120 cm2 and its base is 15 cm then its height is ………………. cm.
A) 16
B) 26
C) 36
D) 10
A) 16

Question 51.
Area of Rhombus is 96 cm2 and its diagonal is 16 cm then its height is
………………….. cm
A) 60
B) 40
C) 70
D) 30
B) 40

Question 52.
In a parallelogram the base is double the height and the area is 512 cm2 then its base is …………………… cm
A) 19
B) 13
C) 16
D) 32
D) 32

Question 53.
In the above problem height = ……………….. cm
A) 19
B) 16
C) 23
D) 11
B) 16

Question 54.
Perimeter of a Rhombus is 56 cm then the length of its side is ……………. cm.
A) 17
B) 16
C) 23
D) 19
A) 17

Question 55.
Radius of a circle is 4.9 cm then its area is ………………. cm2.
A) 64.35
B) 95.35
C) 75.46
D) 15.46
C) 75.46

Question 56.
Area of one circle is 100 times the area of other circle then the ratio of their circumferences is ………………….
A) 1:2
B) 10:1
C) 1:20
D) 30:29
B) 10:1

Question 57.

A) 6324
B) 5784
C) 8126
D) 1199
B) 5784

Question 58.

A) 35
B) 16
C) 80
D) 55
D) 55

Question 59.
The area of adjacent Trapezium is ………….. cm2.

A) 45
B) 50
C) 60
D) 70
A) 45

Question 60.
Area of circle is 616 cm2 then its circumference is ………………… cm
A) 88
B) 10
C) 19
D) 81
A) 88

Question 61.

A) 104
B) 114
C) 154
D) 164
C) 154

Question 62.
Circumference of circle is 264 cm then its area is …………………. cm2
A) 1936
B) 5544
C) 1543
D) 1980
B) 5544

Question 63.
The height of an equilateral triangle is √6 cm then its area is ……………….. cm2.
A) 2√3
B) 3√2
C) 10√3
D) 9√2
A) 2√3

Question 64.
Area of square is 200 cm2 then its diagonal is ………………. cm.
A) 80
B) 30
C) 20
D) 10
C) 20

Question 65.
The difference of a circumference of a circle and the radius is 37 cm then its area is ………………. cm2.
A) 111
B) 160
C) 145
D) 154
D) 154

Question 66.
Area of circle is 1386 cm2 then its circumference is ……………… cm.
A) 123
B) 169
C) 132
D) 119
C) 132

Question 67.
Area of rectangle is 100 cm2, length is 20 cm then its breadth = ……………….. cm.
A) 16
B) 9
C) 10
D) 5
D) 5

Question 68.
The side of a square is 9 cm then its perimeter is ……………….. cm.
A) 32
B) 10
C) 36
D) 16
C) 36

Question 69.
Diagonal of a rectangle is ………………
A) $$\sqrt{l^{2}+b^{2}}$$
B) l + √b
C) √l + b
D) l + b
A) $$\sqrt{l^{2}+b^{2}}$$