Lesson eLearning

If a rectangle has length 8 cm and breadth 5 cm, what is its perimeter?

medium 2 marks Class 1 · Mathematics · Shapes and Space
Answer
26 cm

The correct answer is 26 cm — Hence, the perimeter is 26 cm.

Step-by-step solution

  1. Perimeter of a rectangle is sum of lengths of all four sides.
  2. Formula: P = 2 × (length + breadth).
  3. Substitute length = 8 cm and breadth = 5 cm: P = 2 × (8 + 5) = 2 × 13 = 26 cm.
  4. Hence, the perimeter is 26 cm.
Common mistake: Adding the lengths once instead of doubling.

Concept tested: Perimeter of rectangle

Published · How this solution was prepared and checked

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