If one angle is a right angle, it is a right triangle. If one angle is an obtuse angle, it is an obtuse triangle. If there are no right nor obtuse angle then it is an acute triangle.
A right angle triangle
a right triangle has one right angleA triangle with a right angle is a right triangle.
An obtuse angled triangle.
A 90o angle is also called a Right Angle, so a triangle that has one 90o angle is a Right angle triangle.
A triangle with 1 right angle is a right angle 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.
A triangle with one angle measuring 90˚ is a right triangleIt's a right triangle because the 90˚ angle is a right angle
right-angle triangle has at least one right angle .
A triangle with one angle over 90 degrees is an obtuse triangle.
A triangle that has one right angle and is isosceles is called an isosceles right triangle.
It is a right angle triangle because the 3rd angle has to be 90 degrees