1. Module 4

1.14. Page 2

Mathematics 10-3 Module 4 Lesson 3

Module 4: Area

 

Get Started

 

In the following Try This activity you will review the relationship between the circumference and diameter of a circle.

 

m10_3_trythis.jpg Try This

 

View “Exploring the Diameter and Circumference of Circles,” which reviews the relationships involving the circle you explored in Module 3. Then answer the questions in the Self-Check activity that follows. If you think you need to review these circle relationships further, contact your teacher.

 

m10_3_selfcheck.jpg Self-Check

 

SC 1. Approximately how many times longer is the circumference of a circle than its diameter?

 

SC 2. What symbol is used, in mathematics, to represent the ratio of the circumference of a circle to its diameter?

 

SC 3. A circle has a radius of 3 in. What is the circle’s diameter?

 

SC 4. Estimate the circumference of the circle described in SC 3.

 

SC 5. Use your calculator to determine the circumference of the circle described in SC 3 to two decimal places.

 

Compare your answers.

 

You should now be ready to explore the area of a circle.