Question

What is the area of this composite figure

A) 180.48 cm

B) 260.48 cm

C) 280.96 cm

D) 360.96 cm

Answer 1

Area of Triangle = 1/2 bh

A = 1/2 (16 cm x 10 cm)

A = 160 cm2/2

A = 80 square cm

Area of Circle =
`\pi`d2/4

A = 3.14 x (16 cm)2 / 4

A = 3.14 x 256 cm2 / 4

A = 803.84 cm2 / 4

A = 200.96 cm2

Area of Half Circle = 200.96 cm2 / 2

A = 100.48

Composite Figure = Area of Triangle + Area of half Circle

Area of Composite Figure = 80 cm2 + 100.48 cm2

Area of Composite Figure = 180.48 cm2