If the angles of a quadrilateral are (3y + 10)°, (2y + 30)°, (y +
MATHEMATICS
JAMB 2013
If the angles of a quadrilateral are (3y + 10)°, (2y + 30)°, (y + 20)° and 4y°. Find the value of y.
- A. 66°
- B. 12°
- C. 30°
- D. 42°
Correct Answer: D. 42°
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