What is the circumference of a circular amphitheater with a diameter of 300
meters? (Round your answer to the nearest tenth.)
A. 471.2 m
B. 1984.8 m
C. 1885.0 m
D. 942.5 m

To find the circumference of a circle, you can use the formula , where is the diameter. In this case, the diameter is 300 meters, so the calculation would be . When you calculate this, rounding to the nearest tenth, you get approximately meters. So the correct answer is D.

For a circular amphitheater, this measurement is essential not just for aesthetic reasons but also for audio and sightlines, making sure every seat gets a good view and sound of the performance. It’s fascinating to see how ancient structures incorporated acoustics into their design, like the Roman Colosseum!

Understanding how we use such measurements in real life can be eye-opening. For instance, knowing the circumference helps in planning for things like seating arrangements and stage placements in modern theaters, ensuring audiences have the best experience possible.