Find the angles of an isosceles triangle if the angle at the base is 60 degrees less than the angle between the sides.
| December 3, 2020 | education
let the angle be between the side. sides x °, then the angle at the base of x is 60 °. the sum of the angles in a triangle is 180 °.
x + 2 (x-60) = 180
x + 2x-120 = 180
3x = 300
x = 100-angle between sides. parties
100-60 = 40 ° base angle
answer: 40 °
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