From the cyclic quadrilateral MNOP above, find the value of x.
-
A.
16° -
B.
25° -
C.
42° -
D.
39°
Correct Answer: Option D
Explanation
The sum of two opposite angles of a cyclic quadrilateral = 180°
(therefore) (2x + 18)° + 84° = 180°
2x + 102° = 180° (implies) 2x = 78°
x = 39°
There is an explanation video available below.