Area of Triangles

Name: _____________________________
Date: _____________________________

Formula: Area = (base × height) ÷ 2

Part A: Calculate the area of each triangle

Show your working in the space provided.

1.

Base = 12 cm, Height = 8 cm

Working: __________________________________________

Area = ______________ cm²

2.

Base = 15 cm, Height = 10 cm

Working: __________________________________________

Area = ______________ cm²

3.

Base = 9 cm, Height = 14 cm

Working: __________________________________________

Area = ______________ cm²

4.

Base = 20 cm, Height = 11 cm

Working: __________________________________________

Area = ______________ cm²

5.

Base = 7.5 cm, Height = 12 cm

Working: __________________________________________

Area = ______________ cm²

6.

Base = 18 cm, Height = 9.5 cm

Working: __________________________________________

Area = ______________ cm²

Part B: Word Problems

7.

A triangular garden has a base of 16 metres and a height of 12 metres. What is the area of the garden?

Answer: ______________ m²

8.

A triangle has an area of 60 cm². If the base is 15 cm, what is the height?

Answer: ______________ cm