Final answer:
The area of the circus ring to the nearest tenth of a square meter is approximately 153.9 m².
Step-by-step explanation:
To find the area of the circus ring, we can use the formula for the area of a circle: A = πr², where A is the area and r is the radius.
Substituting the given radius of 7 meters into the formula, we get A = π(7)² = 49π ≈ 153.9 square meters.
Therefore, the area of the circus ring to the nearest tenth of a square meter is approximately 153.9 m², which corresponds to option C.
here
R is the outer radius and
r is the inner radius.
In this case, the outer radius (
R) is the radius of the circus ring, which is 7 meters. Since there is no specified inner radius, we can assume it to be 0 (as Bob is standing at the center). Therefore, the formula simplifies to:
A = π(7)² = 49π ≈ 153.9
Rounding to the nearest tenth, the area is approximately
153.9m
2153.9m 2 .
So, the correct answer is:
C. 153.9 m²