Question

A bookmark is shaped like a rectangle with a semicircle attached at both ends. The rectangle is 18 cm long and 4 cm wide. The diameter of each circle is the width of the rectangle. What is the area of the bookmark? Use 3.14 for π.

Answer 1

the answer is 84.56

Explanation:

A = lw

A = 18 · 4

A = 72

The area of the rectangle is 72 cm2.

Circle

A = πr2

A = 3.14(2)2

A = 3.14(4)

A = 12.56

The area of the circle is 12.56 cm2.

Find the area of the bookmark.

A = 72 + 12.56

A = 84.56