The angles of a polygon are given by 2x 5x x an... - JAMB Mathematics 2019 Question
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 option: b
given that there are 4 angles, it means that the polygon is a quadrilateral.
The sum of the angles in a quadrilateral = 360°
\(\therefore\) 2x + 5x + x + 4x = 360°
12x = 360°
x = 30°
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