A right triangle.
A right-angle triangle must have one corner of 90 degrees.
A right triangle because the 90 degree angle creates a corner.
A right triangle has one exterior angle that's 90 degrees. No other kind of triangle has. All three of the triangle's exterior angles always add up to 360 degrees.
Acute Triangle - All of the angles are under 90 degrees. Right Triangle - One angle is 90 degrees Obtuse Triangle - A triangle that has one angle greater than 90 degrees.
A right triangle.
A right-angle triangle must have one corner of 90 degrees.
A right triangle because the 90 degree angle creates a corner.
A right triangle has one exterior angle that's 90 degrees. No other kind of triangle has. All three of the triangle's exterior angles always add up to 360 degrees.
A triangle with one angle over 90 degrees is an obtuse triangle.
right triangle
An obtuse triangle.
It has 180 degrees, but one angle of the triangle has to be 90 degrees
A right triangle is a triangle in which one angle is equal to 90 degrees and the remaing two angles are acute(ie., less than 90 degree). so this triangle is a right angle triangle.
An obtuse angled triangle.
A right angle has a 90-degree and in two acute angles.
Acute Triangle - All of the angles are under 90 degrees. Right Triangle - One angle is 90 degrees Obtuse Triangle - A triangle that has one angle greater than 90 degrees.