Name: ____________________________________
Math 7
Notes 6.6
GEOMETRY: PERIMETER
 _______________________ is the distance around a geometric figure.
 One way to find perimeter is to __________ the lengths of all the sides of a figure.
5m
5m
5m
Perimeter of Polygon: _____________
5m
5m
5m
 Another way to find perimeter is to use the formula for the perimeter
10 mm
Formula: __________________
Equation: ___________________
16 mm
Perimeter = _____________
 The formula for the perimeter of a square is: _____________________________.
4m
4m
Formula: __________________
Equation: _________________
Perimeter: ___________
 Examples (or key words) for when you use perimeter:



Fencing
Outline
Border



Framing
Around
Outside
The formula to find the circumference is:_____________________________.
Note: Diameter = 2 • radius
Examples: Find the circumference of the circle. Remember  = 3.14
1.
2.
GEOMETRY: AREA
Rectangle
Square
A=
Circle
A=
A=
 Examples (or key words) for when you use area:




Carpet
Wallpaper
Tile
Curtain
You Try!
The volleyball court below has a
length of 59 ft and a width of 29 ½
feet. Find the perimeter and the area.
Find the area of the following
triangle:
Formula: _________________
Area of triangle: ____________
Area of Circles
The formula: ______________
Remember  = 3.14
r=
A=
A=
A=
A=
HOMEWORK
Math 7: Lesson 6.6
Name________________________
Find the perimeter of each shape below.
1)
2)
3)
10 in
3.5 ft
4)
5)
6)
3.5 ft
Find the area of each shape below.
7)
8)
9)
10)
11)
12)
12)
Soccer is played on a rectangular field that is usually 120 yards long and 75 yards
wide. Find the perimeter and the area of the soccer field.
13) The circumference of Earth is about 25,000 miles. What is the distance to the center
of the earth?
14) Suppose a triangle has an area of 20 square inches and a base of 2.5 inches. What is
the measure of the height?