What is the length of the longest pole that can fit itself in a hall 60 feet long, 30 feet broad, and 20 feet high?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 70 feet
diagonal distance = √(length² + breadth² + height²)
= √(60² + 30² + 20²)
= √(3600 + 900 + 400)
= √4900
= 70