Question

Find the circumference of the circle. Use 3.14 for pi.
10.5
Question content area bottom
Part 1
The circumference of the circle is
  
enter your response here cm.
​(Round to the nearest hundredth as​ needed.)

Answer 1

To find the circumference \( C \) of a circle, you can use the formula:

\[
C = 2\pi r
\]

where \( r \) is the radius of the circle. You mentioned "10.5," which I assume is the radius in centimeters.

Using \( \pi \approx 3.14 \):

\[
C = 2 \times 3.14 \times 10.5
\]

Calculating it step by step:

1. First calculate \( 2 \times 3.14 \):
\[
2 \times 3.14 = 6.28
\]

2. Now multiply that by the radius (10.5):
\[
6.28 \times 10.5 = 66.54
\]

Therefore, the circumference of the circle is:

\[
C \approx 66.54 \text{ cm}
\]

So, the final answer, rounded to the nearest hundredth, is:

**66.54 cm**