passwella.
Menu

WAEC Mathematics 2003 Question 23

Question 23

Triangles and Quadrilaterals

Calculate the value of y in the diagram

Diagram for this question
  1. A.17
  2. B.34
  3. C.44
  4. D.45
Show the answer and explanation

Answer: A (17)

Explanation

Through the 136° corner draw a line parallel to the two arrowed lines; the two parts of 136° are 5y and 3y (alternate angles), so 8y = 136 and y = 17.