🧠 Grade 5 Math Quiz · 6. Measurement

Find perimeter of polygons Practice Questions

41 Grade 5 questions on Find perimeter of polygons. Choose an answer to get instant feedback and a short explanation — the first 10 are free.

A rectangle has sides of 12 cm and 8 cm. What is its perimeter?

Explanation: Hello my wonderful student! Perimeter = 2 × (length + width) = 2 × (12 + 8) = 40 cm.

A square has each side 9 cm long. What is its perimeter?

Explanation: Perimeter of a square = 4 × side = 4 × 9 = 36 cm.

A rectangle is 15 cm long and 10 cm wide. What is its perimeter?

Explanation: 2 × (15 + 10) = 50 cm.

A square has a perimeter of 48 cm. What is the length of one side?

Explanation: Side = perimeter ÷ 4 = 48 ÷ 4 = 12 cm.

A triangle has two sides of 12 cm each and a base of 10 cm. What is its perimeter?

Explanation: 12 + 12 + 10 = 34 cm.

A rectangle has a perimeter of 64 cm and length 18 cm. What is its width?

Explanation: 2 × (18 + width) = 64 → width = 14 cm.

A hexagon has all sides 5 cm. What is its perimeter?

Explanation: 6 × 5 = 30 cm.

A square has perimeter 52 cm. What is the side length?

Explanation: 52 ÷ 4 = 13 cm.

A rectangle is 22 cm long and 9 cm wide. What is its perimeter?

Explanation: 2 × (22 + 9) = 62 cm.

A square garden has sides of 14 m. What is its perimeter?

Explanation: 4 × 14 = 56 m.

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