The
figure is represented schematically an Aquarium in the form of a right prism
with square floor, which features 8 dm floor side and the lateral edge of Aquarium of 5 dm. The faces
of the Aquarium are made of glass. The Aquarium floor is made from a different
material. Aquarium is not covered. Into Aquarium is located water up to a
height of 4dm (glass thickness neglect).
a) Calculate how many litres of water
are in the Aquarium,
b) Calculate how many square metres of
glass are needed to into 100 pcs. of Aquarium, having the dimensions given in
the hypotesis,
c) Show that, at any time, the distance
between two fish is less than or equal to 12 dm.
