Question

if an iscoseles triangle , each base angle is four times its vertex angle . find all the angles of the triangles

Answer 1

Angles = 20 , 80 ,80

x + 4x + 4x = 180
9x = 180
x = 20

So Angle 1 = 20
Angle 2 = 80
Angle 3 = 80

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