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Maths dictionary

What is perimeter?

Perimeter is the total distance around the outside of a shape.

Definition

Perimeter is the total distance around the outside of a shape.

Example

A rectangle 7 cm by 4 cm has perimeter 2 × (7 + 4) = 22 cm.

Tip

Add up every side.

Practise it

Quick check: try these

Work each one out on paper, then tap the question to see the answer.

  1. The area of a triangle with base 12 cm and height 11 cm is (cm²)

    Answer: 66

  2. The area of a triangle with base 4 cm and height 7 cm is (cm²)

    Answer: 14

  3. The area of a triangle with base 6 cm and height 2 cm is (cm²)

    Answer: 6

  4. The area of a triangle with base 6 cm and height 10 cm is (cm²)

    Answer: 30

Learn it in depth

Perimeter is part of Perimeter and Area for Class 6: notes, formulas, solved examples with every step, common mistakes and ten practice questions with answers. Want a teacher to go through it with you? See Class 6 maths tuition.

Related words

Area

FAQ

Perimeter: questions

What is perimeter?

Perimeter is the total distance around the outside of a shape. A rectangle 7 cm by 4 cm has perimeter 2 × (7 + 4) = 22 cm.

What is a common mistake with perimeter?

Add up every side.

Where do students learn perimeter?

Perimeter and Area is usually taught in Class 6, and the ideas come back in later classes. Chapter names and order differ by board and textbook, so follow your own textbook. We have a full page with notes, solved examples and practice questions.

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