KS2 Primary Maths Age 9-13 - Area of Shapes: - Explained

The video tutorial explains how to calculate the area of a composite shape made up of a rectangle and two semicircles. It begins by describing the shape and its dimensions, then proceeds to calculate the area of the rectangle using its length and width. Next, it explains how to find the area of the semicircles by combining them into a full circle and using the formula πr². Finally, the areas are added together to find the total area of the shape, with a detailed explanation of each step and the importance of remembering the formulas.

What is the shape composed of in the given problem?

• Two triangles and a rectangle

• A square and a circle

• A rectangle and a triangle

• A rectangle and two semicircles

What is the length of the rectangle in the composite shape?

• 24 cm

• 6 cm

• 20 cm

• 12 cm

How do you calculate the area of the rectangle in this problem?

• Length multiplied by width

• Base multiplied by height

• Diameter multiplied by radius

• Side squared

What is the formula used to find the area of a circle?

• r^2

• πd

• 2πr

• πr^2

What is the radius of the semicircles if the diameter is 12 cm?

• 24 cm

• 3 cm

• 6 cm

• 12 cm

What is the total area of the composite shape?

• 240 cm²

• 11304 cm²

• 353.04 cm²

• 314 cm²

How many marks are awarded for finding the area of the circle?

• One mark

• Two marks

• Three marks

• No marks