If the angle at the vertex of an isosceles triangle is 50 ° determine the angles at the base

If the angle of vertex of isosceles triangle is 50° then the angle of base is 80°

Explanation -

Sum of all angles of a triangle is 180°

As we know in an isosceles triangle 2 sides and equal its opposite angles are also equal .

50 + 50 + X = 180

100 + X = 180

X = 180 - 100

X = 80°

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