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If the angles of a triangle are in the ratio 4 : 5 : 6, find the value of the smallest angle?

A. 36°

B. 48°

C. 12°

D. 24°


1. B
2. D
3. A
4. C

1 Answer

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Best answer
Correct Answer - Option 1 : B

Given

The angles of a triangle are in the ratio 4 : 5 : 6

Concept used

Sum of all angles of triangle is 180° 

Calculation

Let the angles of triangle be 4x, 5x, 6x

⇒ 4x + 5x + 6x = 180° 

⇒ 15x = 180

⇒ x = 12° 

∴ Smallest angle is 4 × 12 = 48° 

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