Geometry & Measures
8 free practice questions with explanations
PassNova has 8 free KS3 Maths practice questions on Geometry & Measures, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Geometry & Measures: example questions & answers
8 worked examples with answers and explanations below. Practise them in the browser with instant feedback on every answer.
What is the area of a rectangle 8 cm long and 5 cm wide?
- A13 cm²
- B26 cm²
- C40 cm²✓
- D80 cm²
Answer: Area of a rectangle = length × width = 8 × 5 = 40 cm².
What is the sum of the interior angles of a triangle?
- A90°
- B180°✓
- C270°
- D360°
Answer: The interior angles of any triangle always add up to 180°.
What is the perimeter of a square with side length 7 cm?
- A14 cm
- B28 cm✓
- C49 cm
- D21 cm
Answer: Perimeter = 4 × side = 4 × 7 = 28 cm.
A circle has radius 5 cm. What is its diameter?
- A5 cm
- B10 cm✓
- C25 cm
- D2.5 cm
Answer: Diameter = 2 × radius = 2 × 5 = 10 cm.
Angles on a straight line add up to:
- A90°
- B180°✓
- C360°
- D270°
Answer: Angles on a straight line are supplementary and sum to 180°.
What is the volume of a cube with side length 3 cm?
- A9 cm³
- B27 cm³✓
- C18 cm³
- D12 cm³
Answer: Volume of a cube = side³ = 3 × 3 × 3 = 27 cm³.
How many degrees are there in a full turn?
- A90°
- B180°
- C360°✓
- D720°
Answer: A full turn (complete rotation) is 360°.
A right angle measures:
- A45°
- B90°✓
- C180°
- D360°
Answer: A right angle is exactly 90°.