In the diagram PQ and MN are straight lines. Find the value of x
MATHEMATICS
WAEC 2005
In the diagram PQ and MN are straight lines. Find the value of x
- A. 13°
- B. 17°
- C. 28°
- D. 30°
Correct Answer: B. 17°
Explanation
The straight line MN = 180 = 2(x+30o) + 86o =>
180 = 2x + 60o + 86o => 180o = 2x + 146o => 2x = 180 - 46 = 34o => x = 34/2 = 17o
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