Question

can a triangle have two right angles, and why or why not? (1 point)
no, because there needs to be a third angle.
no, because a triangle must have an obtuse angle.
yes, because it would be a right triangle.
yes, because 90 + 90 = 180.

Explanation:

The sum of interior angles in a triangle is \(180^{\circ}\). A right - angle is \(90^{\circ}\). If there are two right - angles (\(90^{\circ}+90^{\circ} = 180^{\circ}\)), then the third angle would be \(0^{\circ}\), which is not possible for a triangle. Also, a triangle can be acute (all angles less than \(90^{\circ}\)), right - angled (one right - angle) or obtuse (one angle greater than \(90^{\circ}\)), but not two right - angles.

Answer:

No, because there needs to be a third angle.