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POLIGONOS

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Colombia

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POLIGONOS Online version

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by kevin padilla suarez
1

A pyramid is a polyhedron formed by a base and several lateral faces and these are triangles that meet at a vertex. In this sense, the elements of a pyramid are:

2

The lateral area (AL) of a regular pyramid is given by the product of the number of sides of the base (n) and the area of one of the lateral faces (A), so: AL = nA. A pyramid - shaped structure is to be built with a square base of meters on each side, and the heigth of its lateral faces is 70 m (apothem). So, the lateral area of the structure is:

3

What are the elements of the sphere?

4

Calculate the volume of a sphere of radius 6 cm:

5

In the community of Cereté, the average water consumption is 2 m^3 per person each month. A family wants to fill a cylindrical tank with water for 3 members. The height of the cylinder is 2,8 m, and the radius is 0,5 m. Will the family need more water during the month?

6

A cone-shaped pile of sand measures 12.57 m in circumference at the base and 2.50 m on the side or generatrix, calculate its volume.

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