If you meant x to be the third interior angle, x would equal 80, because the sum of all three interior angles of a triangle equals 180. So 80+50+50=180
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It is a right angle triangle
This are called congruent angles. For example, In an isosceles triangle, the two angles which are opposite to the sides that have the same length, have the same measurements. They are called the base angles of the triangle. When each of them is 45 degree, the triangle is also a right triangle, since the other angle is 90 degree.
right triangle * * * * * Or, to be more precise, a right-angled isosceles triangle.
It will be a right angle triangle and the other sides will have acute angles.
One 90 degree and two 45 degree angles.