If the angles of a triangle are (x + 10)°, (2x - 20)°, and (2x + 10)°, find x.

Type: MCQ • Marks: 1

A. 45°

B. 40°

C. 30°

D. 36°

Explanation

(x+10) + (2x-20) + (2x+10) = 5x = 180° => x = 36°.

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Class 7th Ganita Prakash 1

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