Find the length of the longest pole that can be placed in a room 12 m long 8m broad and 9m high. Pick
A) 13  B) 14  C) 15  D) 16  E) 17
Length of longest pole = Length of the diagonal of the room   = sqrt(12^2+8^2+9^2= sqrt(289)= 17 m.   Answer is 17.
<result>E</result>
Find the length of the longest pole that can be placed in a room 12 m long 8m broad and 9m high.