Question

One angle of a triangle is equal to the sum of other two if the ratio of other two angles is 7:8 find the angle of traiangle

Answer 1

Let a no. x

Now ratio of other 2 angles = 7:8

So one angle is 7x and other is 8x

We know first angle is sum of these 2 angles

So 1st angle = 7x+8x= 15x

Now sum of all angles of a triangle is 180

So

7x+8x+15x = 180

30x=180

x=6

so angles are 7*6=42

8*6=48

15*6=90

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Answer 2

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