Question

Three angles of a quadrilateral measures 36 degree 78 degree 116degree respectively. Find the measure of fourth angle.​

Answer 1

Answer:

The sum of all angles of quadrilateral is 360 °

36+78+116+x= 360°

230+x=360

x=360-230

x=130°

Answer 2

Here. three angles of a quadrilateral are given to be 36°, 78°, and 116°

We have to find the fourth angle

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

So, let the fourth angle be x

Then, x + 36 + 78 + 116 = 360

                            x + 230 = 360

                                      x = 360 - 230

                                           = 130°

Hence, the fourth angle will be 130°