Question

Does a right triangle always have the litte box in the corner. Or i'm I correct to say if if 90 degress its a right triangle?

Answer 1

90 degrees* is a right angle.

Answer 2

Right triangles do not usually have a little box in the corner--this is just to illustrate the right angle. For a right triangle to be a right triangle, one of the angles must be a right angle, i.e., 90 degrees.

Answer 3

Thanks