Mensuration Practice Test 2

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Question : 1 of 40

Marks: +1, -0

The area of a circle is 2,464 sq. m. What will be its circumference?

132 m
176 m
231 m
109 m
272 m

Solution:

Area of circle = 2,464

m^2

Radius = r cm

πr^2

= 2,464

r^2

=

{2464×7}/{22}

r^2

= 784
r = 28 cm
Circumference of the circle = 2πr
=

2×{22}/7 × 28

= 176 meters

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