What is the value of m in the diagram?
MATHEMATICS
WAEC 2010
What is the value of m in the diagram?
- A. 20°
- B. 30°
- C. 40°
- D. 50°
Correct Answer: B. 30°
Explanation
4m - 15o = m + 75o
(Vertically opposite angles are equal)
4m - m = 75 + 15
3m = 90
m = \(\frac{90}{3}\)
m = 30o
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