a right triangle
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a TRIANGLE THAT HAS A 90 DEGREE ANGLE A right triangle is a triangle that has exactly 90 degrees for one angle.
right triangle.
A right triangle is a triangle in which one angle is a right angle (that is, a 90-degree angle). The relation between the sides and angles of a right triangle is the basis for trigonometry.
Any triangle with a 90 degree angle is classified as a right triangle.
Any triangle with a 90 degree angle is called a right triangle.