In an isisceles triangle a base angle is 4times its vertical angle.Find all the angles of the triangle.
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let smallest angle is x
x + x + 4x = 180°
6x = 180°
x = 180°÷6
x = 30°
4x = 30×4= 120°
x + x + 4x = 180°
6x = 180°
x = 180°÷6
x = 30°
4x = 30×4= 120°
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