In an isosceles triangle, the sum of the two angles is 108 degrees find the angles of the triangle.
January 27, 2021 | education
| Let’s denote the angles of the triangle: ∠1, ∠2, ∠3.
The sum of all angles in any triangle is 180 °:
∠1 + ∠2 + ∠3 = 180 °.
We substitute the data from the condition into the equation: ∠1 + ∠2 = 108 °, we get:
108 ° + ∠3 = 180 °,
∠3 = 180 ° – 108 °,
∠3 = 72 °.
Since the triangle is isosceles, then ∠1 = ∠2. Means:
∠1 = ∠2 = 108: 2 = 54 °.
Answer: 54 °, 54 °, 72 °.
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