. In a shopping mall a hall of cuboid shape withdimension 800´800´720 units, needs to be addedthe facility of an escalator in the path. Find

. In a shopping mall a hall of cuboid shape with
dimension 800´800´720 units, needs to be added
the facility of an escalator in the path. Find

Match the items on the right to the items on the left.

minimum total length of the escalator.

heights at which escalator
changes direction. 1

Slopes of escalator at the turning points