How to explain measures and geometry in practice assessment 1 to your child
27 October 2026
Many children find measures and geometry easier to understand when they see a clear example. This question from Practice Assessment 1, Section C, is just the sort of challenge your child will meet in the 11+.
Example question
Find the perimeter and area of a rectangle that is 4 cm wide and 7 cm long.
Step 1: Perimeter means the distance all around the shape.
Step 2: Add all the sides. 4 cm + 7 cm + 4 cm + 7 cm = 22 cm.
Step 3: Area means the space inside the shape.
Step 4: Multiply the width by the length. 4 cm × 7 cm = 28 cm².
The perimeter is 22 cm. The area is 28 square centimetres.
Now your child can spot the difference between perimeter and area, and knows how to work them out for rectangles. Key insight: Practising similar problems helps build confidence for test questions on measures and geometry.
