One of the outer corners of an isosceles triangle is 130 degrees, find the inner and outer corners of the triangle
| September 5, 2021 | education
1. Suppose that the outer goal at the apex of an isosceles triangle is known. Let’s define its inner corner.
180 – 130 = 50 °.
2. Find the interior angles at the base.
(180 – 50) / 2 = 65 °.
3. Let’s calculate the degree measure of the external.
180 – 65 = 115 °.
Answer: Internal – 50 °, 65 °, 65 °. External – 130 °, 115 °, 115 °.
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