Area and Perimeter Practice Test 4

Question : 19 of 40

Marks: +1, -0

The area of a circle is 1386

m^2

. Find its circumference.

Solution:

Radius of the circle =

√{{1386×7}/{22}}

√{36×7}

= 21 m
Circumference of the circle = 2 ×

{22}/7

× 21 = 132 m

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