What is the approximate circumference of a circle that has a radius of 90? Use 3.14 for π

Question

and express your answer to the tenths place.(1 point)

Answer 1

To find the circumference of a circle, you can use the formula:

\[ C = 2\pi r \]

where \( C \) is the circumference and \( r \) is the radius. Given that the radius \( r \) is 90 and using \( \pi \approx 3.14 \), we can substitute these values into the formula:

\[ C = 2 \times 3.14 \times 90 \]

Calculating this step by step:

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

2. Next, multiply by the radius (90): \[ 6.28 \times 90 = 565.2 \]

So the approximate circumference of the circle is:

\[ \boxed{565.2} \]

This is expressed to the tenths place as required.