Question

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

Answer 1

Answer In Attachment

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Answer 2

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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=120 ∘

12x=120 ∘

x=120 ∘ /12=10 ∘

So we get

∠B=5x=5××10 ∘ =50 ∘

∠C=7x=7××10 ∘ =70 ∘