Practice!

Sample Problem

The figure is made up of a parallelogram and a triangle. Find its area.

Its area is cm2.

Solution

Base of the parallelogram

 = 13 cm

Height of the parallelogram

 = 9 cm

Area of the parallelogram

 = 13 cm × 9 cm

 = 117 cm2

Base of the triangle

 = 18 cm − 13 cm

 = 5 cm

Height of the triangle

 = 9 cm

Area of the triangle

 = 1/2 × (5 cm × 9 cm)

 = 22.5 cm2

∴ 117 cm2 + 22.5 cm2 = 139.5 cm2

Its area is 139.5 cm2.