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

Question

A: No because there needs to be a third angel.

B: Yes, because 90 + 90 = 180

C: No, because a triangle must have an obtuse angle.

D: yes, because it would be a triangle.

Answer 1

C: No, because a triangle cannot have two right angles. According to the definition of a triangle, it is a polygon with three sides and three angles. The sum of the interior angles of a triangle is always 180 degrees. If a triangle had two right angles, the sum of the angles would exceed 180 degrees, which contradicts the definition of a triangle.