Geometric calculations

Area of a triangle

Types of exercises: area of triangle, area of a right-angled triangle, area of a triangle - measurements in different units.

Exercises are drawn at random from a large bank - every click gives a different set.

Solved: 0 of 10

1

Problem

The base of a triangle is 60 cm long, and the height to that base is 3 m. How many square centimetres is the area of this triangle?

2

Problem

In a right-angled triangle the two sides that form the right angle are 9 m and 17 m long. How many square metres is the area of this triangle?

3

Work out

The area of a triangle: a = 22 m, h = 8 m

4

Problem

The base of a triangle is 7 m long, and the height to that base is 4 dm. How many square decimetres is the area of this triangle?

5

Problem

In a right-angled triangle the two sides that form the right angle are 5 cm and 11 cm long. How many square centimetres is the area of this triangle?

6

Work out

The area of a triangle: a = 21 cm, h = 6 cm

7

Problem

The base of a triangle is 8 dm long, and the height to that base is 3 cm. How many square centimetres is the area of this triangle?

8

Problem

In a right-angled triangle the two sides that form the right angle are 5 cm and 12 cm long, and the longest side is 13 cm long. How many square centimetres is the area of this triangle?

9

Work out

The area of a triangle: a = 17 m, h = 19 m

10

Problem

The base of a triangle is 3 mm long, and the height to that base is 5 cm. How many square centimetres is the area of this triangle?

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Area of a triangle - exercises with solutions (Geometric calculations) | PhiBoard