Perimeter (Year 5)
Calculate the perimeter of 2D shapes by adding side lengths.
The questions below are generated to match the National Curriculum for Year 5 and get harder as you progress from Rookie to Guru.
Worked examples
RookieRead and interpret directly.
Triangle angle sum?
- 180°
- 360°
- 90°
- 270°
Answer: 180°. Triangle = 180°.
ProCompare and infer.
Properties of a parallelogram: BOTH parallel pairs AND...
- Opposite sides equal length.
- All sides equal.
- Right angles.
- All angles equal.
Answer: Opposite sides equal length.. Parallelogram: 2 pairs parallel + equal.
GuruMulti-step reasoning.
Why is a square classed as both a rectangle AND a rhombus?
- Square has all properties of a rectangle (right angles) AND of a rhombus (4 equal sides) — it's the intersection.
- Coincidence.
- Convention.
- Vague.
Answer: Square has all properties of a rectangle (right angles) AND of a rhombus (4 equal sides) — it's the intersection.. Square = rectangle ∩ rhombus.
Related skills
Frequently asked questions
- What is perimeter?
- Calculate the perimeter of 2D shapes by adding side lengths.
- How can my child practise perimeter at home?
- Work through the examples below, then start a free adaptive session. Northstar adjusts the difficulty automatically and tracks mastery over time.
Practise this adaptively
Start a free session that adjusts to your child's level, tracks mastery and celebrates progress.
Start free