Surface Area
Thursdays Assignment:
7 cm
5 cm
8 cm
Answer:
262 cm2
Front
Front = 56cm2
7
Back = 56 cm2
8
Top and Bottom
8x5=
40 cm2
Bottom = 40cm2
Left = 5 x 7 = 35
Right = 5 x 7 = 35
56 + 56 + 40 + 40 + 35 + 35 =
112 + 80 + 70
Top =
Height = 5cm
Area of
t
Comparing and Ordering Rational
Numbers (pg 46)
Rational Numbers:



Can be a decimal, a fraction, a
whole number or a mixed number.
Can be positive, a negative, or a
zero.
Not a number that goes on forever
ex: , e: Irrational Numbers
Mixed number: 3
1
Volume
Whats the difference between
surface area and volume?
Surface Area= How much skin is
covering an object
Outside of the box
Example: How much cardboard is
needed to make this box?
Volume = How much space is
inside an object
Inside the Box
Example: H
Surface Area
2D: Area
Area is the amount of space a 2D
object takes up
3D: Surface Area
Surface Area is how much space
there is on every side of a 3object.
Imagine youre painting the object.
Youre looking at how much paint
you would need to paint the s
When finding the SA of complex
shapes:
Step 1: Find the SA of the individual
shapes
Step 2: Find the covered area, and
subtract it (Subtract it twice)
3m
2m
4m
3m
5m
Big Box
Little Box
2
3
4
3
3
5
F & B = 20 + 20
=6+6
F&B
L & R = 12 + 12
=6+6
L&R
T & B =
MPMI D
Simplétying Polynomials
Use your skills with integers to simplify the following polynomials. Remember that you can only add and
subtract LIKE TERMS.
1. 42+3x4~5x 8. ~5+7x~6+8x+5~15x
2. 5y+4xl7y3 9. 2a+5a+7a28a+6a2
3. ~2x2+3x7x6x2  10. 7mn6m
Unit 3 Review: Linear Relationships
1. Complete the table of values below for the equation
x
2
u1
0
1
2
. Graph the relationship.
y
2. Identify the slope and yintercept for each line below. Then graph the line.
a)
b)
c)
d)
e) 9x 3y = 18
3. Find the eq
MPM1D
Volume of Pyramids and Cones
A pyramid has a base that is a polygon,
triangular sides that rise at a slant to
and meet at a single point, the vertex.
In grade 9, we work only with
squarebased pyramids.
Unit 5 Lesson 4
A cone has a circular base and
Grade 9 Math Review Sheet
Unit 1: Shape & Space
1) 2D Shapes: Find the Area and Perimeter of each shape(8 Marks)
b.
a.
Height = 7 in
6 in
6 in
10 m
7m
9 in
2) Find the surface area for these 3D Shapes:
Height = 6 in
7 in
7 in
7 in
5 in
3 in
5 cm
4 in
he