# One of the corners of an isosceles triangle at 90 degrees. more than the other. Find all the corners of the triangle.

May 28, 2021 | education

| Let’s denote two unknown equal angles of an isosceles triangle through x, then the third angle will be (x + 90). Let’s write an equation for the sum of all angles, which is 180 °.

x + x + (x + 90) = 180;

3x = 180 – 90:

x = 90/3 = 30 °.

30 + 90 = 120 °.

Answer: the angles of the triangle are 30 °; 30 ° and 120 °.

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