JAMB - Mathematics (2018 - No. 6)
Find the value of x in the diagram
10°
28°
36°
40°
Explicació
The diagram shows angles at a point, the total angle at a point is 360
x - 10 + 4x - 50 + 2x + 3x + 20 = 360
10x - 40 = 360
10x = 360 + 40
10x = 400
x = \(\frac{400}{10}\)
x = 40