Two angles are in the ratio 4:5 and they are complementary. Find the smaller angle.

Type: MCQ • Marks: 1

A. 45°

B. 36°

C. 50°

D. 40°

Explanation

4x + 5x = 90° => 9x = 90° => x = 10°. Smaller angle = 4 × 10° = 40°.

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Class 7th Ganita Prakash 1

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