The sum of the 2 angles at the base of an isosceles triangle is 140 degrees. Find these corners.
| January 27, 2021 | education
Theorem: In an isosceles triangle, the angles at the base are equal. And the converse theorem: if two angles in a triangle are equal, then it is isosceles. A triangle is called isosceles if its two sides are equal. These equal sides are called sides, and the third side is called the base of the triangle.
from the theorem we obtain 140/2 = 70 °. Both angles are 70 °.
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