Obtuse-angled triangle
a right triangle
A 90o angle is a right angle, and a triangle with a right angle is called a right triangle.
right triangle
A triangle that has an angle greater than 90o is an obtuse triangle.
a right triangle
A right triangle.
An obtuse triangle.
A right angle triangle
a right angle triangle is its name
A 90o angle is also called a Right Angle, so a triangle that has one 90o angle is a Right angle triangle.
It is called a right triangle.
a right triangle it's called this because it has a right angle.