The radius of this clock is 4.7 in.
Introducing Circumference of a Circle
Use this to check your answers for the questions below.
Question 1
If the diameter (d) is 10.7 units, find the circumference of the circle.
Question 2
What is the circumference of this clock?
Question 3
If the circumference of this button is 11.6 cm, then what is the radius?
Question 4
The phone's camera lens has a circumference of 3.8 cm. What's the distance across the camera lens?
Question 5
Find the circumference of a Dino's pizza that has the diameter of 12 inches.
Look back at your previous answers to fill out this table.
Question 6
What do you notice about the ratio of circumference to diameter of a circle?