Question
The diameter of a circle is 4 kilometers. What is the circle's circumference?
d=4 km
Use 𝜋 ≈ 3.14 and round your answer to the nearest hundredth.
kilometers
d=4 km
Use 𝜋 ≈ 3.14 and round your answer to the nearest hundredth.
kilometers
Answers
GPT-4o mini
To find the circumference \( C \) of a circle, you can use the formula:
\[
C = \pi \times d
\]
where \( d \) is the diameter of the circle. Given that the diameter \( d = 4 \) km and using \( \pi \approx 3.14 \), we can calculate the circumference as follows:
\[
C = 3.14 \times 4
\]
Calculating that:
\[
C = 12.56 \text{ km}
\]
Rounding to the nearest hundredth, the circumference of the circle is:
\[
\boxed{12.56} \text{ kilometers}
\]
\[
C = \pi \times d
\]
where \( d \) is the diameter of the circle. Given that the diameter \( d = 4 \) km and using \( \pi \approx 3.14 \), we can calculate the circumference as follows:
\[
C = 3.14 \times 4
\]
Calculating that:
\[
C = 12.56 \text{ km}
\]
Rounding to the nearest hundredth, the circumference of the circle is:
\[
\boxed{12.56} \text{ kilometers}
\]