Lesson eLearning

A square garden has a perimeter of 64 cm. What is its area in square centimeters?

hard 3 marks Class 3 · Mathematics · Fun with Numbers
Answer
256 cm^2

The correct answer is 256 cm^2 — Thus the area is 256 cm^2.

Step-by-step solution

  1. Let side length be s cm. For a square, perimeter = 4 × s.
  2. Set up the equation: 4s = 64.
  3. Solve for s: s = 64 ÷ 4 = 16 cm.
  4. Area of a square = s × s = 16 × 16.
  5. Compute: 16 × 16 = 256.
  6. Thus the area is 256 cm^2.
Common mistake: Using the whole perimeter as side length, or forgetting to divide by 4.

Concept tested: perimeter and area of a square

Published · How this solution was prepared and checked

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