What is the greatest possible straight line distance, in inches, between any two points on a rectangular box that is 5 inches wide, 3 inches long, and 4 inches high?  Choose the correct answer.
A) 2√5 B) 5 C) 5√2 D) 10 E) 50
The maximum possible distance in a cuboid is the diagonal.   Diagonal length = sqrt(length^2 + breadth^2 + height^2) = sqrt(50)   = 5√2   (Option 5√2)
<result>C</result>
What is the greatest possible straight line distance, in inches, between any two points on a rectangular box that is 5 inches wide, 3 inches long, and 4 inches high?