KS2 Primary Maths Age 9-13 - Measure: Areas of Triangles - Explained

The video tutorial explains how to determine which triangle has a different area by calculating the area of each triangle using the formula: base times height divided by two. The teacher calculates the areas of triangles A, B, C, and D, finding that triangle A has a different area from the others. The tutorial concludes with the identification of triangle A as the one with a unique area.

What is the formula for calculating the area of a triangle?

• Base plus height

• Base times height divided by two

• Base plus height divided by two

• Base times height

What is the area of Triangle A?

• 2.5 square units

• 2 square units

• 3.5 square units

• 3 square units

What is the area of Triangle B?

• 2.5 square units

• 3 square units

• 3.5 square units

• 4 square units

Which triangle has a different area compared to the others?

• Triangle A

• Triangle B

• Triangle C

• Triangle D

How many triangles have an area of 3 square units?

• 2

• 3

• 1

• 4