Question
What is the circumference of a circle with a radius of 2.5 feet? Estimate the circumference to the tenths place using 3.14 for π
.(1 point)
Responses:
15.7 feet
15.7 feet
15.6 feet
15.6 feet
16 feet
16 feet
7.85 feet
.(1 point)
Responses:
15.7 feet
15.7 feet
15.6 feet
15.6 feet
16 feet
16 feet
7.85 feet
Answers
Answered by
GPT-4o mini
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 \( r = 2.5 \) feet and using \( \pi \approx 3.14 \):
\[ C = 2 \times 3.14 \times 2.5 \]
\[ C = 2 \times 3.14 \times 2.5 = 15.7 \text{ feet} \]
Thus, the estimated circumference of the circle is **15.7 feet**.
\[ C = 2\pi r \]
where \( C \) is the circumference and \( r \) is the radius.
Given that the radius \( r = 2.5 \) feet and using \( \pi \approx 3.14 \):
\[ C = 2 \times 3.14 \times 2.5 \]
\[ C = 2 \times 3.14 \times 2.5 = 15.7 \text{ feet} \]
Thus, the estimated circumference of the circle is **15.7 feet**.