2008
Mathematics
JAMB
In the diagram above, PQ//RS. The size of the angle marked x is?
A.
100°
B.
80°
C.
50°
D.
30°
Correct Answer: 80°
Explanation
Exterior angle = sum of two interior opposite angles y = 50° (vert. opp ∠s are equal) X = y + 30 X = 50 + 30 X = 80°
Exterior angle = sum of two interior opposite angles y = 50° (vert. opp ∠s are equal) X = y + 30 X = 50 + 30 X = 80°THIS WEEK's
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