Vocabulary
Circumference
Area
Radius/Diameter
100
This is the HALFWAY segment of a circle from the edge to the middle.
RADIUS
100
Find the Circumference:
3.14 x 15 = 47.10 centimeters
100
Find the area:
Area = 78.50 cm
100
What is the radius?
Radius = 4.5 in
200
This is the segment crossing ALL THE WAY from one point to the other of a circle
DIAMETER
200
Find the circumference:
3.14 x 8 = 25.12 cm
200
Find the area:
Area = 28.26 in
200
What is the diameter?
Diameter= 6 in
300
The distance around the outside of a circle is called the ______________________.
CIRCUMFERENCE
300
Ms. Ramirez wants to buy ribbon to put around the outside of her table. The diameter of her table is 5 feet. Find the amount of ribbon for the circumference of her table.
3.14 x 5 = 15.70 feet
300
The radius of the clock was 4 inches. Ms. Ramirez wants to find the area of the clock. What is the area?
A= 50.24 in
300
What is the diameter?
Diameter = 6 feet
400
The space INSIDE a circle is called the ________.
AREA
400
The tire of Ms. Ramirez's car has a radius of 12 inches. Find the circumference of her tire.
3.14 x 24 = 75.36 inches
400
The diameter of the donut was 6 inches. Ms. Ramirez wants to find how much filling is inside the donut. What is the area of the donut?
28.26 in
400
What is the radius?
Radius = 6 inches