What is the measure of an angle if its supplement is 3 times its complement?

Type: MCQ • Marks: 1

A. 45°

B. 60°

C. 75°

D. 30°

Explanation

180 - x = 3(90 - x) => 180 - x = 270 - 3x => 2x = 90 => x = 45°.

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Class 7th Ganita Prakash 1

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