Question

10. The perimeter of a circular field is
308 metres. If the value of ti is 22/7 ,
then the area of that field (in metres)
will be
07546
5746
6547
4765​

Answer 1

Circumference of circle = 2πr

308 cm = 2πr

308 / 2 cm= πr

154 cm = 22r / 7 [ π = 22 / 7 ]

154 × 7 / 22 cm = r

7 × 7 cm = r

49 cm = r or radius

Then,

Area of circular sheet = πr²

Area of circular sheet = 22 / 7 × 49 × 49 cm²

Area of circular sheet = 22 × 7 × 49 cm²

Area of circular sheet = 7546 cm²