An isosceles triangle has base angles of 63° each. Find the vertex angle.

Type: MCQ • Marks: 1

A. 63°

B. 64°

C. 117°

D. 54°

Explanation

Base angles are equal. Vertex angle = 180° − 63° − 63° = 54°.

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Class 7th Ganita Prakash 2

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