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1. ¿what is a cone?
A
The cone is a polyhedron that has several faces.
B
Is a geometric figure, limited by a curved surface gerated by a generatrix semi straight point.
C
It is a plane and closed figure because all the points are the same distance from the center
2. ¿ what are the cone elements?
A
The arch, the radius and the diameter
B
The cusp, the base, the height, the radius and the directrix
C
The cusp, the arch, the diameter and the aristas.
3. Open the image and read the problem
A
The area of the base is equal to 113,04cm^2, the total area cone is equal to 365.79cm^2
B
The area of the base is equal to 103,09cm^2, the total area cone is equal to 215.79cm^2
C
The area of the base is equal to 183,04cm^2, the total area cone is equal to 765.79cm^2
4. ¿what is the sphere?
A
Is a figure having a fixed cusp point and traversing a fixed directrix curve through a base plane.
B
It is a figure with a curved and closed lateral surface and two parallel planes that form its bases.
C
Body bounded by a curved surface where its points are the same distance from the center
5. ¿Which of the following figures is a sphere?
A
B
C
6. In Neiva, in the main park, they have built a monument in the shape of a sphere with a radius of 50 cm. Determine the area and volume of the sphere.
A
A=56.2cm^2, V=546.3cm^3
B
A=31.4cm^2, V=523.3cm^3
C
A=31.4cm^3, V=523.3cm^2
7. open the image, read and answer
A
Volume V=15.760cm^3 and Área A_T=3.150cm^2
B
Volume V=12.487cm^3 and Área A_T=2.150cm^2
C
Volume V=12.560cm^3 and Área A_T=3.140cm^2