5. Vocabulary I will use during
the the Presentation
Face
A flat surface of
Verticals
a polyhedron
The corner points
t
where the line meets
in a Solid Figure t
Volume
Amount of space inside t
of a area (Example: Edge t
Cube’s volume= amount A line where
of space inside of the t wo faces of a
cube Polyhedron meet
6. Cube
Net of a cube
To get volume the
volume for the cube.
You have to add
height, length and
width.
Equation=W x L X H
7. Just Incase
A net is a closed plane figure that can be
folded into a closed 3D figure
8. Rectangle prism
Net of a
To get the volume for Rectangle prism
a rectangle prism. Do
the same thing as
you did for the cube.
Equation=Same as
a cube
9. Cylinder
Get the area of one of the
circles of a cylinder Net of a
To get the volume of a circle,
Cylinder
you have to multiply the
radios by the radios again
Then multiply the answer
you got that
Then multiply the height by
it
Equation=πr h2
10. Cone
Net for a Cone
The volume of a cone
is 1/3 the volume of
a cylinder with the
same base area and
height
Equation= 1/3πr h2
11. Sphere
Sphere is a little hard to explain.
It’s connected to a cylinder.
The sphere doesn’t fill the whole Net of a Sphere
cylinder.
It only covers 2/3 of the volume of the
cylinder which has the same height
and the base area.
this is the equation to get volume of
the 2/3 of a cylinder
Equation=4/3πr 3
14. Instructions
Divide into 3 teams
I’ll give you the question
Write the answer on a whiteboard
put the answer up
The first group to put the answer up and
gets it right wins
Wins=Gets candy
18. Why is the Equation for
a Cone 1/3πr h?
2
Hint
πr h is the
equation for a
cylinder
19. Why is the Equation for
a Cone 1/3πr h?
2
Hint
πr h is the
equation for a
cylinder
20. Why is the Equation for
a Cone 1/3πr h?
2
Hint
πr h is the
equation for a
cylinder
It is because a volume of a cone is
1/3 of the volume of a cylinder
which has the same base and
height
22. Vocabulary Questions
Don’t worry. I
only have t wo
vocabulary
question NET is a...
Closed plan figure that
can be a folded in to a
closed 3D figure
23. Draw a net of each
Figure I just talked
about.