Question

The Sum of the Measures of three angles of quadrilateral is 300° then measure of fourth angle is​

Answer 1

Answer:

140, because the sum of 5 sides of quadrilateral is 540°.

Answer 2

Answer:

The measure of fourth angle is 60 degree as the sum of angles of quadrilateral is 360 degree

So,

360-300

60 degree ( ans )