Question

one of the exterior angle of a triangle is 12 5 degree and the interior opposite angle are in the ratio 2:3 find the angle of the angle of the triangle.

Answer 1

let the interior angles be 2x and 3x
we know that,
exterior angle=sum of 2 opposite interior angles.
125=2x+3x
125=5x
x=125/5
x=25'
the angles will be,
2x = 2*25=50'
3x= 3*25=75'




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