Question

An exterior angle of a triangle measures 120 degree and its interior opposite angles are in the ratio 5:7. Find the angles of the triangle with explination​

Answer 1

Step-by-step explanation:

We know that exterior angle of a triangle is sum of two interior angles

SO,

5x + 7x = 120

12x = 120

x = 10

Then 5*10-50 7*10=70

We got two angles

We know that sum of interior angles of

triangle is 180 so, 50 + 70 + x = 180

x=180-120=60

The angles are 50,70,60

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