If the acute angles of a right-angled triangle are in the ratio 1 : 4, what is the smallest angle?

Type: MCQ • Marks: 1

A. 18°

B. 36°

C. 15°

D. 22.5°

Explanation

1x + 4x = 90° => 5x = 90° => x = 18°.

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Class 7th Ganita Prakash 1

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