Posted by Firdous on .
Suppose that there is a rectengular box with a length of 8 centimeters a width of 6 centimeters and a height of 4 centimeters.Find the length of a diagonal from a lower corner to the upper corner diagonally opposite.
Answer is 10.8 centimeters

MAths algebra 
Reiny,
d^2 = 8^2 + 6^2 + 4^2 = 116
d=√116 = appr 10.8