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: B
Explanation
The correct answer is option 2 i.e. 70 feet
Given that
The length of a hall( l )= 60 feet
The breadth of a hall (b) = 30 feet
The height of a hall (h) = 20 feet
The length of the longest pole that can fit in this hall = the diagonal of this hall
= √(l2 + b2 + h2) = √(3600 + 900 + 400) = √4900 = 70 feet