2019
Mathematics
67ca00ce0c643c71d77dee1f
The angles of a polygon are given by 2x, 5x, x and 4x respectively. The value of x is
A.
31°
B.
30°
C.
26°
D.
48°
Correct Answer: 30°
Explanation
Since there are 4 angles given, the polygon is a quadrilateral. Sum of angle in a quadrilateral = 360° ∴ 2x + 5x + x + 4x = 360° 12x = 360° x = 30°
Since there are 4 angles given, the polygon is a quadrilateral. Sum of angle in a quadrilateral = 360° ∴ 2x + 5x + x + 4x = 360° 12x = 360° x = 30°THIS WEEK's
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