If the distance across the window is 10 ft, what is the area of the semicircular part of the window? Use 3.14 for and round the

Question

nikklg [1K]

3 years ago

9

If the distance across the window is 10 ft, what is the area of the semicircular part of the window? Use 3.14 for and round the

answer to the nearest hundredth. 39.25 m

Mathematics

1 answer:

Lynna [10] · Answer 1 · 2022-08-08T05:01:28+03:00

Lynna [10]3 years ago

6 0

D= diameter of semicircle= 10 ft

Therefore, r= d/2 = 10/2= 5 ft. r^2= 25

And, the formula for area of a semicircle is half that of a circle so,

A/2= [(pie=3.14) x r^2] /2

= [3.14 x 25 ] /2

= 39.25 m