math
posted by Abdulaziz .
Assume that aclass room is arectangular box where the floor is 8metres long and 6metres wide.If the distance from the floor to the ceiling(height of the room)is 3metres,find the diagonal distance between acorner of the room on the floor and the opposite corner on the ceiling.

√(8^2+6^2+3^2) = √(64+36+9) = √109