alleryThe angles of a triangle are in the ratio 2 : 7 : 11. The angles are
A(15, 60, 105)
B(18, 63, 99)
C(30, 70, 80)
D(20, 70, 90)
Answer & Solution
Correct answer: B. (18, 63, 99)
1. Sum of angles in a triangle equals 180 degrees.
2. Sum of ratio parts = 2 + 7 + 11 = 20.
3. Each part value = 180 / 20 = 9 degrees.
4. Angles = 2*9, 7*9, 11*9 = 18, 63, 99 degrees.
_Source: ICAI BoS Foundation Paper 3, Ch 1 Unit I 'Ratio', p.5 Ex.1(A) Q14_
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