From the cyclic quadrilateral MNOP above find t... - JAMB Mathematics 2019 Question
From the cyclic quadrilateral MNOP above, find the value of x.
A
16°
B
25°
C
42°
D
39°
correct option: d
The sum of two opposite angles of a cyclic quadrilateral is equal to 180°
\(\therefore\) (2x + 18)° + 84° = 180°
2x + 102° = 180° \(\implies\) 2x = 78°
x = 39°
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