Question

Estimate the perimeter and the area of the shaded figure to the nearest tenth.

-Please help me-

Answer 1

Perimeter = 12+4pi

Area = 16+8pi

Explanation:

Description of the assumed shape:

A rectangle 2 x 8 superimposed on a semi-circle of radius 4.

Perimeter:

P = 2+8+2+(4)(pi) = 12+4pi

Area :

A = 2*8 +(pi)4^2/2 = 16 + 8pi