Question

one angle of a triangle is 60 degree. the other two angles are in the ratio 5: 7 .find the two angle​

Answer 1

Answer:

your answer is 50 and 70

Answer 2

Answer:

From the triangle ABC

Consider ∠A=60°

,∠B:∠C=5:7

In a triangle

∠A+∠B+∠∠C=180°

Substituting the values

60° +∠B+∠C=180°

By further calculation

∠B+∠C=180° –60°

=120°

Take ∠B=5x and ∠C=7x

Substituting the values

5x+7x=12°

12x=120°

x=120/12

x= 10°

So we get

∠B=5x=5×10

=50°

∠C=7x=7×10

=70°

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