Lesson eLearning

Find the perimeter of an isosceles triangle whose equal sides each measure and whose base measures .

easy 1 mark Class 9 · Mathematics · Triangles
Answer

The correct answer is — The perimeter is , so the perimeter is .

Step-by-step solution

  1. Add the lengths of all three sides.
  2. The perimeter is , so the perimeter is .
Common mistake: Adding only two sides or forgetting the base

Concept tested: Perimeter of a triangle

Published · How this solution was prepared and checked

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