In the diagram P, Q, R, S are points on the circle RQS = 30o. PRS = 50o and PSQ = 20o. What is the value of xo + yo?
Attached Figure / Diagram
A
260o
B
130o
C
100o
D
80o
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
Draw a line from P to Q
o
Also, o
x + y + 5= = 180(angles in a triangle)
x + y = 180 - 50
x + y = 130o
Source: Myschool Past Questions Archive (Record #36206)