a brief discussion about solid figures

1. Solid Figures
I can identify,
classify,
and compare three
dimensional geometric
figures using appropriate
terminology and
vocabulary.

2. ESSENTIAL QUESTIONS
What are 3 dimensional geometric figures? How are they
classified?
What are 3 dimensional geometric figures? How are they
related to polygons?
2

3. DRILL

4. 1.This polygon has 3 sides.
2. A figure that has 5 sides is called ______?
3.A heptagon has __________ sides.
4. What do you call a polygon with 8 sides?
5.How many sides does a hexagon has?
PENTAGON
TRIANGLE
SEVEN
OCTAGON
SIX

5. Let’s Review Polygons
What makes geometric shapes (polygons) different
from each other?
We never looked at circles, ovals, or anything with
curved sides. Do you know why these shapes
weren’t included with polygons?
Why is it important to know how many edges and
vertices a polygon has?

6. Notes to ponder
We will cover:
• Faces
• Edges
• Vertices
• Prisms
• Cubes
• Pyramids
• Curved Solids
Let’s go!

7. SOLID FIGURES
3 dimensional figures
Length
Width
Height
Can stand on it’s own.

8. SOLID FIGURES
Solid Figures can have:
Faces Edges Vertices

9. The sides of a solid
figure are called faces.
face

10. Edges are formed
when two faces meet.
edge

11. A vertex is formed
where three or more
edges meet.
vertex
Vertices is the plural
form of vertex.

12. Polyhedron
A polyhedron is a solid with flat faces. figure (from
Greek poly- meaning "many" and -edron meaning
"face").
Each face is a polygon or 2-D figure. (a flat shape
with straight sides).
So, to be a polyhedron there should be NO CURVED
SURFACES.

13. A prism is a polyhedron
that has 2 congruent
bases.
base - bottom face
of a solid figure

14. Prisms are named according to their
bases.
Base Name of Prism
triangle triangular prism
rectangle rectangular prism
hexagon hexagonal prism

15. This is a special
prism called a cube.
All of its faces are
squares.
It is a type of
rectangular prism!

16. A pyramid is a polyhedron with only
one base. All other faces are
triangles that meet at the same
vertex.

17. Pyramids are named according to their
bases as well!
Base Name of Pyramid
triangle triangular pyramid
rectangle rectangular pyramid
pentagon pentagonal pyramid

18. Solids with curved surfaces are
NOT polyhedrons.
Cylinder - a solid
figure with two
congruent circular
faces
Cone - a solid
figure with one
circular base and
one vertex
vertex
circular base

19. A very special curved solid is called a
Sphere– you just know it as a ball!
A sphere has
only one
surface or
face.
It has no
edges nor
vertices.

20. Review
What is a solid figure?
A. flat, closed, plane figure; can’t stand on
its own.
B. 3-D; it can stand on its own
C. None of the above

21. What is this figure called?
A. Cone
B. Rectangular Prism
C. Cube

22. What is this figure called?
A. Sphere
B. Cube
C. Pyramid

23. What is this part of the cylinder called?
A. Face
B. Edge
C. Vertex

24. What is this part of the cone called?
A. Face
B. Edge
C. Vertex

25. What is this part of the cube
called?
A. Face
B. Edge
C. Vertex

26. GROUP
ACTIVITY

27. Complete the table below. Draw 3 objects that represents the
figure.
Solid Figure
Illustration
(draw the
figure)
Number of
vertices
Number of
faces
Number of
edges
Triangular
prism
Square
pyramid
Cone
Rectangular
prism
Cube

28. Solid Figure
Illustration
(draw the
figure)
Number of
vertices
Number of
faces
Number of
edges
Triangular
prism
6 5 9
Square
pyramid
5 5 8
Cone 1 1 0
Rectangular
prism
8 6 12
Cube 8 6 12

30. CONE PRISM
PYRAMID CUBE
SPHERE
/ /
X /
/

31. Analyze the following riddles. Write and draw your answer.
1. I have 6 flat surfaces. I have 8 corners.
All my sides are the same. What am I?
5. I have two flat surfaces. I can
roll.
My flat surfaces are circles.
What am I?
2. I am a solid shape. I have one flat
surface.
I have one vertex. What am I?
6. I have 3 corners and 3 sides. I
am a flat shape. I begin with a t. I
end with an e.
What am I?
3. have 4 sides. All of my sides are the
same.
I am on the bottom of a pyramid.
What am I?
7. I have 4 corners. I have 4 sides.
I am not a square. 2 sides are long
and 2 sides are short. What am I?
4. I have no flat surfaces. I have no
vertices.
I have no edges. I can roll.
What am I?
8. I am a solid shape. I have 6
faces.
They are rectangles. I have 12
edges.
What am I?

32. Thank you and God bless!!!