In the diagram, ∠ QPR = 90 o . If q 2 = 25 -
MATHEMATICS
WAEC 2008
In the diagram, ∠ QPR = 90o. If q2 = 25 - r2. Find the value of p
- A. 3
- B. 4
- C. 5
- D. 6
Correct Answer: C. 5
Explanation
Given q2 = 25 - r2.....(1)
from Pythagoras theorem
p2 = q2 + r2....(2)
put(1) into (2)
p2 = 25 - r2 + r2
p2 = 25
p = \(\sqrt{25}\)
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