Question

Which of the following uses the correct formula to find the approximate circumference of a circle that has a radius of 450?(1 point) Responses C≈3.14⋅4502 upper C approximately equals 3.14 times 450 squared C≈3.14⋅450÷2 upper C approximately equals 3.14 times 450 divided by 2 C≈2⋅3.14⋅450 upper C approximately equals 2 times 3.14 times 450 C≈3.14⋅150

Answer 1

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

\[ C \approx 2\pi r \]

Using \( \pi \approx 3.14 \), this can be approximated as:

\[ C \approx 2 \times 3.14 \times r \]

Given that the radius \( r = 450 \), the correct formula to find the circumference is:

\[ C \approx 2 \times 3.14 \times 450 \]

So the correct response is:

C≈2⋅3.14⋅450