In an isosceles triangle, one of the angles is 78 degrees. Find the degrees of the remaining angles.
| February 24, 2021 | education
The problem has two solutions.
Solution 1.
1. Let’s define the third angle of an isosceles triangle if we know the degree measure of the angle at the base.
180 – 78 * 2 = 24 °.
Answer: 78 °, 78 °, 24 °.
Solution 2.
1. Let’s calculate the angles at the base when the angle at the top is known.
(180 – 78) / 2 = 51 °.
Answer: 51 °, 51 °, 78 °.
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