Answered

UNIT TEST:
Circles and Composite Figures
Calculator
What is the circumference of a circle with a radius of 7.9 inches?
Use 3.14 for pi.
Enter your answer as a decimal in the box.
49. in.
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Verified Answer :

GinnyAnswer

To solve the problem of finding the circumference of a circle with a given radius of 7.9 inches, follow these steps:

1. Identify the Given Information:
- Radius (\(\( r \)\)): 7.9 inches
- Pi (\(\( \pi \)\)): 3.14

2. Understand the Formula for Circumference:
The formula for the circumference (\(\( C \)\)) of a circle is given by:
\(\[ C = 2 \pi r \]\)

3. Plug in the Given Values:
Replace \(\( \pi \)\) with 3.14 and \(\( r \)\) with 7.9 inches in the formula:
\(\[ C = 2 \times 3.14 \times 7.9 \]\)

4. Calculate the Circumference:
Multiply the values step by step:
\(\[ C = 2 \times 3.14 \times 7.9 = 49.612 \]\)

Therefore, the circumference of the circle is \(\(\boxed{49.612}\)\) inches.

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