Can a triangle have two right angles, and why or why not?

1 answer

No, a triangle cannot have two right angles.

A triangle is a polygon with three sides and three angles. The sum of the angles in a triangle is always 180 degrees. In a right triangle, one of the angles is already fixed at 90 degrees. Therefore, if two angles were right angles (both measuring 90 degrees), the sum of the angles in the triangle would be 180 + 90 + 90 = 360 degrees, which is greater than the sum that a triangle can have.

Hence, it is not possible for a triangle to have two right angles.