Lesson eLearning

A parallelogram has a base of 12 cm and a height of 5 cm. If the other side is 15 cm, find its area and perimeter.

medium 2 marks Class 7 · Mathematics · Perimeter and Area
Answer
Area = 60 cm²; Perimeter = 54 cm

The correct answer is Area = 60 cm²; Perimeter = 54 cm — Step 2: Perimeter = 2 × (base + other side) = 2 × (12 + 15) = 54 cm.

Step-by-step solution

  1. Step 1: Area of parallelogram = base × height = 12 × 5 = 60 cm².
  2. Step 2: Perimeter = 2 × (base + other side) = 2 × (12 + 15) = 54 cm.
Common mistake: Using the wrong side as base for area

Concept tested: Area and perimeter of a parallelogram

Published · How this solution was prepared and checked

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