A right angle triangle.
An obtuse angle
right angle
A right angle and two acute angles.
A right triangle
the obtuse angle is the largest angle in a triangle. It spreads from 91 to 179 on a protractor
A right angle triangle.
An obtuse angle
right angle
A right angle and two acute angles.
It is a right angle triangle
Any triangle with a 90 degree angle is classified as a right triangle.
A right triangle
A triangle has only 1 right angle. It only has one side that can possibly be a right angle. The type of triangle varies.
Any type of triangle determined by its angle can be an isosceles triangle. A scalene or right triangle can't.
It is a right angle triangle and the 3rd angle will measure 30 degrees
If you mean what type of triangle has perpendicular lines then it is right angle triangle.