Term 2 ReviewCH8­9­10studentcopy.notebook
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
May 14, 2015
A
6 8
D
E
x
3
C
B
A
x
D
x+1.5
B
2.5
y
x
a
b
E
5
C
Term 2 ReviewCH8­9­10studentcopy.notebook
May 14, 2015
When the altitude is drawn to the hypotenuse of a right triangle, 3 GM's occur....
b
h
a
d
c
x
h
h
a
a
d b
b
Term 2 ReviewCH8­9­10studentcopy.notebook
Given:
c = 8
a = 4
c
b=______
d
h
a
May 14, 2015
b
d=______
x
h= _____
x= _____
Given:
a = 4
x = 29
c
a
d
h
x
b
b =______
d =______
h = _____
c = _____
Term 2 ReviewCH8­9­10studentcopy.notebook
22) x = 20; a = 4
c
d
h
b
a
x
23) c = 8; a = 4
d
c
h
b
a
x
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
May 14, 2015
Geometry Chapter 10
OBJ: To recognize Space figures and nets.
Defn: Polyhedron - a three dimensional figure
whose surfaces are polygons. Each polygon is a face.
An edge is a segment that is formed by the intersection
of 2 faces. A vertex is a point where 3 or more edges
intersect
This is a rectangular based prism.
base
Lateral face
Base edge
base
vertex
Octagonal based prism. Bases are octagons.
base
Top
base
Bottom
Lateral edge
Base edge
Lateral face
(there are 8)
Term 2 ReviewCH8­9­10studentcopy.notebook
May 14, 2015
Now let's draw some:
pentagonal based prism
hexagonal based prism
triangular based prism
Term 2 ReviewCH8­9­10studentcopy.notebook
A Net is a two dimensional figure that you get
when you peel or unwind the solid.
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
May 14, 2015
Recall: formula for SA
Volume
SA = pH + 2B
V = BH
p = H = B =
Term 2 ReviewCH8­9­10studentcopy.notebook
May 14, 2015
Find SA and V 4
5
8
∴ SA =___________
∴ V = ____________
Term 2 ReviewCH8­9­10studentcopy.notebook
Find SA and V
15'
10'
6'
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
Geometry
Chapter 10A
What did we learned in this chapter?
SA of solid figures (prisms and pyramids)
V of solid figures (prisms and pyramids)
What is a prism?
What is a pyramid?
What are the formulas?
SA = pH + 2B
SA = 12 pl + B
V =BH
V = 13 BH
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
What do the letters mean?
p
B
H
l
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
What is the BASE of this prism?
s
How would you find p?
How would you find B?
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
What is the BASE of this prism?
s
How would you find p?
How would you find B?
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
What is the BASE of this prism?
How would you find p?
How would you find B?
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
What is the BASE of this prism?
How would you find p?
How would you find B?
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
Draw a triangular based prism
Draw two nets
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
What is the BASE of this prism?
x
How would you find p?
How would you find B?
May 14, 2015
Term 2 ReviewCH8­9­10studentcopy.notebook
Find the V and SA 6ft
10ft
Find the V and SA 40in
21in
May 14, 2015
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