Question

find the area of a sector of a circle whose circumference is 22 cm​

Answer 1

Answer:

Let r be the radius of the circle.

Then

Circumference= 22 cm.

⭆2πr = 22

⭆r = 22/2π

⭆r = 22×7 ÷2× 22

⭆r = 7/2

Area of the circle

= πr²

=22/7×7/2×7/2 cm²

=38.5 cm²

Therefore,the area of a circle is 38.5 cm²

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