Question

What is the area of a semicircle with diameter 18 in. ? *

Answer 1

Answer:

hey mate ,

here is ur answer

area of semi circle is (πr ²)/2

diameter of circle = 18

radius is = 18/2

so, the radius is 9

so, area of semi circle =( π r²)/2

((22/7)*(9*9))/2

(462in.)/2

= 231in.²

hope it helps u

thanks for giving me a chance to help you

Answer 2

Answer:

area of semicircle = (pi)r

= 3.14×9

where r= 9

= 28.26