Objective - To use formulas to solve problems.

1
Objective - To use formulas to solve problems.
Formula -
An algebraic equation that describes a
relationship between two or more variables.
2
Find the area of the circle below using the
formula
r 4 in.
3
(No Transcript)
4
Use the formula, , to
change the temperature of 59 Fahrenheit to
Celsius.
5
Mark borrows 500 from the bank at 6
simple annual interest for 4 years. Use the
formula, I Prt, to find what interest he owes.
Interest
6
Perimeter and Area Formulas
Figure
Perimeter
Area
Square
s
P 4s
s
Rectangle
w
P 2l 2w
l
Parallelogram
7
Perimeter and Area Formulas
Figure
Perimeter
Area
Square
s
P 4s
s
Rectangle
w
P 2l 2w
l
a
P 2a 2b
h
Parallelogram
b
Triangle
8
Perimeter and Area Formulas
Figure
Perimeter
Area
Square
s
P 4s
s
Rectangle
w
P 2l 2w
l
a
P 2a 2b
h
Parallelogram
b
Triangle
9
Perimeter and Area Formulas
Figure
Perimeter
Area
Square
s
P 4s
s
Rectangle
w
P 2l 2w
l
a
P 2a 2b
h
Parallelogram
b
c
Triangle
P a b c
10
Use formulas to find the perimeter and area of
the figure below.
1)
6 in.
5 in.
7 in.
Perimeter
Area
P 2a 2b
P 2(6) 2(7)
P 12 14
P 26 inches
11
Use formulas to find the perimeter and area of
the figure below.
2)
5 cm
6 cm
3 cm
9 cm
Perimeter
Area
P a b c
P 5 6 9
P 20 cm
12
Find the area of the trapezoid given the formula
.
8 m
1)
5 m
7 m
6 m