Solution

1. B

2. A

3. D

4 B

5. C

6. B

By Pythagoras Theorem
H^2 = P^2 + B^2
5^2 = 4^2 + B^2
25 = 16 + B^2
B^2 = 25 – 16
B = 3

7. C

8. D

9. C

By Pythagoras Theorem
H^2 = P^2 + B^2
H^2 = 4^2 + 3^2
H^2 = 16 + 9
H^2 = 25
H = 5

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