Question

Find the Perimeter of the figure below, composed of a rectangle and two semicircles. Round to the nearest tenths place.

Answer 1

Answer:

perimeter of rectangle = 2 (10+8) = 36

now t hnically joining 2 semi circled we need circumference of circle with radius = 8/4 = 2

so circum = 2 pi r = 2 pi 2 = 4 pi

now 4pi = 4 × 3.14 = 12.56

so total = 36 + 12.56 = 48.56

said to round nearest tenth so ans is 48.5