Taller de geometría: Poliedros

1. Instruction: Read carefully and answer the following questions.
1. Color the polyhedra.
Some polyhedra have special names. Like cube, pyramid and prism. Draw them.
Geometric Workshop
SUBJECT: Mathematics 2nd GRADE
TEACHER: GROUP: A-B-C-D-E
NAME: AVERAGE:
DATE:
Remember: There are not curved surfaces in polyhedra.

2. 2. Yoshi found a piece of cheese that look like a prism and he wants to show it to Mario.
Help him to found its prism.
A prism is a figure that has a polygon as base. Like this:
Yoshi’s prims had a triangular base. Color Yoshi’s prism.
3. Now, identify the parts of a polyhedron. Color this cube according to the key.
3. Count the number of faces, edges and vertices of the following shapes.
4. Color the shape that is described from each three options.
KEY
1 face in red
1 edge in blue
1 vertex in green

3. 4. Color the polyhedron that is described from each three options.
5. Match the polyhedron with its net.

4. 6. Polyhedra also receive names according to their number of faces as you learned in
class. Fill in the following chart using that classification names.
Polyhedron Faces Edges Vertices Name Example in
environment
7. Answer the following questions. Write True (T) or False (F).
A polyhedron has curved surfaces. ____
A polyhedron is named according to its faces. ____
The parts of a polyhedron are edges and vertices. ____
Cube, prism and pyramid are polyhedra. ____
A tetrahedron is a polyhedron that has 5 faces. ____
A dodecahedron is a polyhedron that has 12 faces. ____
A nonahedron is a polyhedron that has 9 faces. ____
8. Choose the right answer answer:
How many faces does an octahedron have?
a. 8 b. 10 C. 7 d. 9
How many faces does a hexahedron have?
a. 10 b. 6 C. 7 d. 8

5. What is the name of a polyhedron that has 5 faces?
a. pentahedron b. nonahedron C. heptahedron d. tetrahedron
What is the name of a polyhedron that has 10 faces?
a. nonahedron b. decahedron C. octahedron d. dodecahedron
What is the name of a polyhedron that has 7 faces?
a. undecahedron b. decahedron C. heptahedron d. pentahedron
Did youknow?
Some years ago video games
graphic designers used
polyhedra to create games.
That was the first step to move
to high 3D quality.
Math is everywhere!
Thanks to geometry we
can enjoy amazing
graphics now.