In an isoceles triangle ,the vertex angle is twice the sum of the base angles .Find the angles of a triangle
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Step-by-step explanation:
let the base angle be x
vertex angle=2x
sum of isoceles triangle be90
atq
x+2x=90
3x=90
x=90/3
x=30
base angle be 30
vertex angle be 60
sum of angle of triangle be180
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