WAEC - Mathematics (1992 - No. 25)

The angles marked in the diagram above are measured in degrees. Find x

15o
24o
30o
36o
48o

Explanation

Sum of exterior angles = 360°

2x + 3x + 2x + 3x + 5x = 360°

15x = 360°

x = 360°/15 = 24°

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