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Big Ideas Math Geometry, 2014

BI

Big Ideas Math Geometry, 2014 View details

1. Circumference and Arc Length

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Exercise 1 Page 594

Remember the formula for the circumference of a circle.

≈ 15.71in.

Practice makes perfect

The circumference C of a circle with diameter d is calculated using the formula below. C=π d By substituting 5 for d in the formula, we can calculate C.

C=π d

d= 5

C=π( 5)

Use a calculator

C=15.707963...

Round to 2 decimal place(s)

C≈ 15.71

The circumference of the circle is about 15.71 inches.

Subchapter links

Communicate Your Answer p.593

Monitoring Progress p.594-597

Exercises p.598-600