KS2 Primary Maths Age 9-13 - Area - Problem: - Explained

The video tutorial explains how to find the area of a shaded rhombus within a rectangle. The rhombus's vertices are midpoints of the rectangle's sides. The tutorial calculates the area by subtracting the area of four triangles from the rectangle's area. The rectangle's area is 48 cm², and each triangle's area is 6 cm², leading to a rhombus area of 24 cm². The video also discusses the marks distribution for the problem and emphasizes the importance of knowing geometric formulas for exams.

What is the relationship between the vertices of the rhombus and the rectangle?

• The vertices of the rhombus are the corners of the rectangle.

• The vertices of the rhombus are the midpoints of the sides of the rectangle.

• The vertices of the rhombus are outside the rectangle.

• The vertices of the rhombus are the same as the vertices of the rectangle.

How is the area of one triangle within the rectangle calculated?

• Base plus height divided by 2

• Base times height

• Base times height divided by 2

• Length times width

What is the total area of the four triangles within the rectangle?

• 30 cm²

• 12 cm²

• 18 cm²

• 24 cm²

What is the final area of the shaded rhombus?

• 12 cm²

• 24 cm²

• 18 cm²

• 30 cm²

How many marks are awarded for correctly finding the area of the rhombus?

• 4 marks

• 1 mark

• 3 marks

• 2 marks