2025 · Q61
Consider the following for the next two (02) items that follow: A hall is of length l, breadth b and height h. The maximum distance between any two points (say P and Q) inside the hall is 14 m, whereas the maximum distance between any two points (say P and R) on the floor is 6 m. What is h equal to?
Elementary MathematicsMensuration
- A3·5 m
- B4 m
- C4·5 m
- D5 m
Explanation
The floor diagonal is 6√5 m (the printed '6 m' omits the √5 required for consistency with the next item) and the space diagonal is 14 m. Hence h = √(14² − (6√5)²) = √(196 − 180) = 4 m, option (b).