Question

One angle of triangle is 80°and other two angles ratio 3:7 find the other angle

Answer 1

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Answer 2

Hello Friend ... ☺

Sum of all angles in a triangle = 180

Let the unknown angles be 3x and 7x as both are in ratio 3:7 ...

Now...

3x+7x+80 = 180

10x = 100

x = 10..

Unknown angles are 3x = 30 and 7x = 70 ..

Hope this helps you Friend...☺