Unless it is a religious triangle it does not have to have any angels!
Seriously, though, a triangle does not have to have a 90 degree angle. In terms of its angles, the only requirement is that the measures of the three angles adds to 180 degrees (or pi radians).
Chat with our AI personalities
A right angle triangle
Those triangles with 25 and 90 degree angles are called right angle triangle.
In a right triangle the greatest angle is 90 degrees.
a right triangle it's called this because it has a right angle.
more than a 90 degree angle but less than a 180 degree angle