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Question
In a shopping mall there is a hall of cuboid shape with dimension 800 × 800 × 720 units, which needs to be added the facility of an escalator in the path as shown by the dotted line in the figure. Find the heights at which the escalator changes its direction
Solution
Give the dimension of the cube = 800 × 800 × 720
Lengths at which the escalator changes its direction:
The heights at which the escalator changes its direction
First step EA = `1/4 xx 720` = 180 units
Second step FB = `1/2 xx 720` = 360 units
Third step GC = `1/3 xx 720` = 540 units
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