Find the value of y, when x = 600 in the figure below.
1100
1200
1400
900
Sum of angle in a cyclic quadrilateral is 3600. 2x+2y = 3600 ⇒ x = 1200
Measure of the four angles ∠A, ∠B, ∠C and ∠D in the given parallelogram will be