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WAEC Mathematics 2008 Question 16

Question 16

Triangles and Quadrilaterals

In the diagram, ∠QPR = 90°. If q2 = 25 − r2, find the value of p.

Diagram for this question
  1. A.3
  2. B.4
  3. C.5
  4. D.6
Show the answer and explanation

Answer: C (5)

Explanation

By Pythagoras, p2 = q2 + r2 = 25, so p = 5.