Area Related to Circles Test

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Area Related to Circles Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

If the area of a circle is 154 cm2, then its perimeter is

A
11 cm

B
22 cm

C
44 cm

D
55 cm
Question 2
1 / -0

If the sum of the circumferences of two circles with radii R₁ and R₂is equal to the circumference of a circle of radius R, then

A
R₁ + R₂ = R

B
R₁ + R₂ > R

C
R₁ + R₂ < R

D
None of these
Question 3
1 / -0

If the circumference of a circle and the perimeter of a square are equal, then

A
Area of the circle = Area of the square

B
Area of the circle > Area of the square

C
Area of the circle < Area of the square

D
Nothing definite can be said about the relation between the areas of the circle and square.
Question 4
1 / -0

Area of the largest triangle that can be inscribed in a semi-circle of radius r units is

A
r²sq. units

B
1/2 r²sq. units

C
2r²sq. units

D
√2 r²sq. units
Question 5
1 / -0

The perimeter of a circle is equal to that of a square, then the ratio of their areas is

A
22 : 7

B
14 : 11

C
7 : 22

D
11 : 14
Question 6
1 / -0

It is proposed to build a single circular park equal in area to the sum of areas of two circular parks of diameters 16 m and 12 m in a locality. The radius of the new park would be

A
10m

B
15m

C
20m

D
24m
Question 7
1 / -0

The area of the circle that can be inscribed in a square of side 6 cm is

A
36π cm²

B
18π cm²

C
12π cm²

D
9π cm²
Question 8
1 / -0

The area of the square that can be inscribed in a circle of radius 8 cm is

A
256 cm²

B
128 cm²

C
64√2 cm²

D
64 cm²
Question 9
1 / -0

The radius of a circle whose circumference is equal to the sum of the circumferences of the two circles of diameters 36 cm and 20 cm is

A
56 cm

B
42 cm

C
28 cm

D
16 cm
Question 10
1 / -0

The diameter of a circle whose area is equal to the sum of the areas of the two circles of radii 24 cm and 7 cm is

A
31 m

B
25 m

C
62 m

D
50 m

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Area Related to Circles Test - 3

Result

Area Related to Circles Test - 3

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Question 1

11 cm

22 cm

44 cm

55 cm

Question 2

R1 + R2 = R

R1 + R2 > R

R1 + R2 < R

None of these

Question 3

Area of the circle = Area of the square

Area of the circle > Area of the square

Area of the circle < Area of the square

Nothing definite can be said about the relation between the areas of the circle and square.

Question 4

r2 sq. units

1/2 r2sq. units

2r2sq. units

√2 r2sq. units

Question 5

22 : 7

14 : 11

7 : 22

11 : 14

Question 6

10m

15m

20m

24m

Question 7

36π cm2

18π cm2

12π cm2

9π cm2

Question 8

256 cm2

128 cm2

64√2 cm2

64 cm2

Question 9

56 cm

42 cm

28 cm

16 cm

Question 10

31 m

25 m

62 m

50 m

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R₁ + R₂ = R

R₁ + R₂ > R

R₁ + R₂ < R

r²sq. units

1/2 r²sq. units

2r²sq. units

√2 r²sq. units

36π cm²

18π cm²

12π cm²

9π cm²

256 cm²

128 cm²

64√2 cm²

64 cm²