Question

Three angles of a quadrilateral are of magnitudes 80°, 95º and 120°. The magnitude of the fourth angle is (1) 80° (2) 65° (3) 75° (4) 70°​

Answer 1

We are given that three angles in a quadrilateral are 80°, 95º, and 120°.

We have to find the measure of the fourth angle.

Now, we know that the sum of all the four angles in a quadrilateral is 360°

So, let the fourth angle be x

then, 80 + 95 + 120 + x = 360

295 + x = 360

x = 65

Hence, the fourth angle will be 65°

The correct answer will be option 2