2019
Mathematics
67ca00ce0c643c71d77dee1f
From the cyclic quadrilateral MNOP above, find the value of x.
A.
16°
B.
25°
C.
42°
D.
39°
Correct Answer: 39°
Explanation
The sum of two opposite angles of a cyclic quadrilateral = 180° ∴ (2x + 18)° + 84° = 180° 2x + 102° = 180° ⟹ 2x = 78° x = 39°
The sum of two opposite angles of a cyclic quadrilateral = 180° ∴ (2x + 18)° + 84° = 180° 2x + 102° = 180° ⟹ 2x = 78° x = 39°THIS WEEK's
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