Question

The length of a chain used as boundary of the ge semi circular park is 90 cm. Find the area of the park

Answer 1

here 22*x/7=90
x=90*7/22
x=28 approximate (here radius is x)

Answer 2

circumference of this park= πr+2r
= r(π+2)= 90
r = 90×7/36
r = 35/2 cm
area = πr²
= 962.5cm² ans.