Find the value of x if ABCD is a cyclic quadrilateral if ∠1 : ∠2 = 3 : 6.
A. 90°
B. 45°
C. 60°
D. 20°
Answer:D
Find the value of x if ABCD is a cyclic quadrilateral if ∠1 : ∠2 = 3 : 6.
A. 90° B. 45° C. 60° D. 20°
Explanation: Since ABCD is a cyclic quadrilateral, Sum of either pair of opposite angles of cyclic quadrilateral is 180°