Question

one angle of a quadrilateral is 150° ad all these angles are equal . what is the measure if each equal side​

Answer 1

Let the equal angles of the quadrilateral be x

Now we know the sum of all angles of a quadrilateral is 360

150+ x+x+x= 360

150+3x= 360

3x= 210

x= 70

The answer is 70(d)

Answer 2

Answer:

(d) 70°

Step-by-step explanation:

Sum of four angle of quadrilateral =360°

                             One angle =150°

            ∴The sum of remaining angle =360°-150°

                                                                = 210°

                    Three angles are equal

              ∴The measure of each angle=210°/3=70°