If the circumference of a circular sheet is 154 m, find its radius. Also, find the area of the sheet.
It is given in the question that,
Circumference of a circular sheet = 154 m
We know that,
Circumference of the circle = 2
r
∴ 2 × 
× r = 154
Thus,
= 24.5 m
We know that,
Area of the circle = 
r2
∴ Area = 
= 22 × 85.75
= 1886.5 m2
15