Question

One angle of a triangle is 78degree and the other angles are in the ratio 7 : 10 .find their measures.​

Answer 1

Let, other angles be 7k and 10k respectively.

Then,

78° + 7k + 10k = 180°

17k = 102°

k = 6

∴ Second Angle = 7(6) = 42°

Third Angle = 10(6) = 60°

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