WAEC - Mathematics (1996 - No. 27)
In the diagram above, find x correct to the nearest degree
15o
25o
26o
36o
72o
Forklaring
4x + 3x + 5x + 2x = 360 ( sum of angles of a quadrilateral )
14x = 360
x = \(\frac{ 360}{14}\)
= 25. 7142°..
\(therefore = x = 26^0\) to the nearest degrees.
Note; opposite angles are equal.