Question

Question!

The circumference of a circle is 132 m. Find its area.

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Answer 1

Given :

• Shape = Circle
• Circumference of circle = 132m

To Find :

• Find the area of circle ?

Solution :

Finding the Radius of Circle :

➣ Circumference of Circle = 2πr

➣ 132 = 2 × 22/7 × r

➣ 132/2 = 22/7 × r

➣ 66 = 22/7 × r

➣ 66 × 7 = 22 × r

➣ 462 = 22 × r

➣ 462/22 = r

➣ 21m = radius

Finding the Area of Circle :

➣ Area of Circle = πr²

➣ Area of Circle = 22/7 × (21)²

➣ Area of Circle = 22/7 × 21 × 22

➣ Area of Circle = 22 × 3 × 21

➣ Area of Circle = 66 × 21

➣ Area of Circle = 1386m²

Hence,

• Area of Circle is 1386m².