Find the value of x in the diagram
Attached Figure / Diagram
A
10°
B
28°
C
36°
D
40°
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
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
Source: Myschool Past Questions Archive (Record #46983)