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Maths-

General

Easy

Question

The area of a circle is 154 m². Find the circumference of the circle

hint Hint:

Try to find radius

The correct answer is: 44 m

It is given that area of a circle = 154 m²
$rightwards double arrow$ $straight pi$ r² = 154
$rightwards double arrow$ $22 over 7$ r² = 154
$rightwards double arrow$ r² = 49
$rightwards double arrow$ r = 7 m
Circumference of the circle = 2 $straight pi$ r
= 2 × $22 over 7$ × 7
= 44 m

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