The sum of two interior angles in a triangle is 1.5 times the third. Find the third corner.
| December 10, 2020 | education
Let the third angle be x. Then the sum of the other two is 1.5x. Their sum is x + 1.5x. By theorem, the sum of the angles of a triangle is 180 °.
Let’s make an equation.
x + 1.5x = 180
2.5x = 180
x = 180: 2.5
x = 72
Hence, the third angle is 72 °
Answer: 72 °
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