Question

6. The length of a chain used as the boundary of a semicircular park is
108 m. Find the area of the park.​

Answer 1

Start by finding perimeter of semi circular park ... it is given as 108 m ... therefore

Answer 2

Answer:

1386m^2

Step-by-step explanation:

Given,

Length of semicircular park = 108m

So, perimeter of the semicircular park is 108m

then,

πr+d=108m

=>πr+2r=108

=>r(π+2)=108

=>r=108/(π+2)

=>r=108/(36/7)

=>r=108×7/36

=>r=21m

Now,

Area of the park=πr^2

=22/7×21^2

=22/7×21×21

=63×22

= 1386m^2