Find the value of x in the diagram
MATHEMATICS
WAEC 2009
Find the value of x in the diagram
- A. 50°
- B. 30°
- C. 22°
- D. 17°
Correct Answer: D. 17°
Explanation
Sum of exterior angles of a polygon = 360o
(x + 64) + 2x + (3x - 54) + 5x + 4x + 3x + (2x + 10) = 360o
20x + 20 = 360o
20x + 360 - 20 = 340o
x = \(\frac{340}{20}\)
x = 17o
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