In the diagram, PQ//RS. Find x in terms of y and z
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In the diagram, PQ//RS. Find x in terms of y and z
A.
x = 240o - y - z
B.
x = 180o - y - z
C.
x = 360o + y -z
D.
x = 360o - y - z
Correct answer is D
In the diagram,
a = z (alternate angles)
b = 180o - a (angles on a straight line)
b = 180o - z
c = 180o - x (angles on a straight line)
y = b + c (sum of oposite interior angles)
y = 180o - z + 180o - x
y = 360o - z - x
x = 360o - y - z