Home » In the diagram above, PQ//RS. The size of the angle marked x is

In the diagram above, PQ//RS. The size of the angle marked x is

In the diagram above, PQ//RS. The size of the angle marked x is

A.
100^o
B.
80^o
C.
50^o
D.
30^o

Correct Answer: Option B

Explanation

Exterior angle = sum of two interior opposite angles
y = 50° (vert. opp ∠s are equal)
X = y + 30
X = 50 + 30
X = 80°