A rectangle is placed around a semicircle as shown below. The width of the rectangle is 3ft. Find the area of the shaded region.Use the value 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.

A triangle is placed in a semicircle with a radius of 8mm, as shown below. Find the area of the shaded region.Use the value 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.8mm

Find the area of the shaded figure below.Take π = 227.

A rectangular piece of paper with length 35cm and width 14cm has two semicircles cut out of it, as shown below.Find the area of the paper that remains. Use the value 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.

In circle FF, F, G, equals, 3FG=3 and the length of arc, G, H, equals, one third, pi GH⌢ = 31​ π. Find the area shaded below. Express your answer as a fraction times piπ.

In circle TT, the length of arc, U, V, equals, start fraction, 4, divided by, 3, end fraction, pi UV⌢ = 34​ π and mangle, U, T, V, equals, 80, degrees∠UTV=80 ∘ . Find the area shaded below. Express your answer as a fraction times piπ.