At the rodeo, the bronco riding event takes place in a large dirt ring which has a radius of 7.1 metres. What is the ring's circumference?

Use 3.14 for ​𝜋. If necessary, round your answer to the nearest hundredth.

 metres



To calculate the circumference of the ring, you can use the formula:

\[
C = 2\pi r
\]

where:
- \( C \) is the circumference,
- \( \pi \) is approximately 3.14,
- \( r \) is the radius of the ring.

Given:
- Radius \( r = 7.1 \) metres,
- \( \pi \approx 3.14 \).

Substituting the values:

\[
C = 2 \times 3.14 \times 7.1
\]

\[
C = 44.548 \text{ metres}
\]

Rounding to the nearest hundredth:

\[
C \approx 44.55 \text{ metres}
\]

So, the circumference of the ring is **44.55 metres**.

Would you like further details or have any questions?

Here are 5 related questions for you to consider:
1. How would the circumference change if the radius were doubled?
2. What is the area of the dirt ring using the same radius?
3. How would the formula change if you needed to find the circumference in feet instead of metres?
4. If a rider completes 3 full laps around the ring, what distance have they covered?
5. How accurate would your answer be if you used \( \pi \) as 3.14159 instead of 3.14?

**Tip:** Always keep track of units in your calculations to ensure consistency and accuracy.

At the rodeo, the bronco riding event takes place in a large dirt ring which has a radius of 7.1 metres. What is the ring's circumference? Use 3.14 for ​𝜋. If necessary, round your answer to the nearest hundredth.

Calculate the circumference of a dirt ring with a radius of 7.1 metres using the formula C = 2πr. This geometry problem demonstrates how to find the circumference of a circle using 3.14 for π. Suitable for students in Grades 6-8.

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