Question 23
Mensuration of SolidsA cuboid has a diagonal of length 9cm and a square base of side 4cm. What is its height?
- A.9cm
- B.√65cm
- C.4√2cm
- D.7cm
- E.6.5cm.
Show the answer and explanation
Answer: D (7cm)
Explanation
The diagonal satisfies 9² = 4² + 4² + h², so h² = 81 − 32 = 49 and h = 7cm.