PERIMETER
AREA
FORMULAS
MAKE IT PROPORTIONAL
VOCABULARY
100
Perimiter =
What is 26
100
The radius of a circle is 9 cm. What is the area?
What is A = 254.34 cm2
100
D = 2r
What is Diameter
100
1 can of juice for $2.00 and 4 cans for____
WHAT IS $8
100
The distance from one point on a circle through the center to another point on the circle.
What is Diameter?
200
CIRCUMFERENCE =
What is 56.52
200
The diameter of a circle is 12 in. What is the area?
What is A = 113.04 in2
200
r = 1/2D
What is radius
200
3 pairs of socks for $3.00 and 10 pairs for____
What is $10
200
The distance once around the circle.
What is circumference?
300
The diameter of a nickel is 2 cm. What is the circumference?
What is C = 6.28 cm
300
A semi-circle shaped rug has a diameter of 2 ft. What is the area of the rug?
What is 1.57 sq. ft
300
A = 3.14 x r x r
What is area of a circle
300
What is 2.5
300
The distance from the center outwards.
What is radius?
400
The circumference of a compact disc is 28.26 centimeters. What is the radius?
What is r = 4.5 cm
400
A dog is tied to a wooden stake in a yard. His leash is 3 m long, and he runs around in circles pulling the leash as far as it can go. How much area does the dog have to run around in?
What is A = 28.26 sq. m
400
C = 3.14D
What is circumference of a circle
400
What is 26
400
The amount of space inside the boundary of a flat (2-dimensional) object such as a triangle or circle, or surface of a solid (3-dimensional) object.
What is Area?
500
The diameter of your bicycle wheel is 25 in. How far will you move in one turn of your wheel?
What is C = 78.5 in
500
A lawn sprinkler sprays water 5 ft in every direction as it rotates. What is the area of the sprinkled lawn?
What is A = 78.5 sq. ft.
500
3.14 x r2
What is the area of a circle?
500
20 pencils for $2.00 and 50 pencils for ____
What is $5.00
500
Set of all points on a plane that are a fixed distance from a center.
What is a circle?