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Find the Measure of Each Angle of an Equilateral Triangle.

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Question

Find the measure of each angle of an equilateral triangle.

Answer in Brief
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Solution

In equilateral triangle we know that each angle is equal

So ∠A = ∠B = ∠C

Now  ∠A + ∠B  + ∠C = 180° (by triangle property)

3∠A = 180°

∠A = 60°

Hence. ∠A = ∠B  = ∠C = 60°

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Chapter 12: Congruent Triangles - Exercise 12.7 [Page 84]

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R.D. Sharma Mathematics [English] Class 9
Chapter 12 Congruent Triangles
Exercise 12.7 | Q 7 | Page 84

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