Question

three right angle. ​

Answer 1

Answer:

The remaining external angle must be 1 right angle (=4−3) , so the remaining 4th interior angle is also a right angle. Therefore, if 3 internal angles are right angles, the 4th angle must also be a right angle. So no quadrilaterals have exactly 3 right angle...

........Right triangles are triangles in which one of the interior angles is 90 degrees, a right angle. Since the three interior angles of a triangle add up to 180 degrees, in a right triangle, since one angle is always 90 degrees, the other two must always add up to 90 degrees (they are complementary)

Answer 2

Step-by-step explanation:

Right angle:- An angle which is Above 0° & Below 90° Is called Right Angle

Please mark me as brainlist Please