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16 days because each day it climbs 5 and each night slides down 4 so that means he makes one foot of progress per day. The well is only 16 feet deep so if each day equals one foot of progress it would take the snail 16 days to get out.

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

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