B) between 15 and 16 meters
The distance the puppy runs in one lap is approximately equal to the circumference of the circle he runs in, which can be calculated using the formula for the circumference of a circle: C = 2πr, where r is the radius of the circle.
In this case, the radius is half of the length of the leash, so the radius is 1.5 meters. Plugging this into the formula gives us C = 2π(1.5) = 3π ≈ 9.42 meters.
Therefore, the approximate distance the puppy runs in one lap is between 15 and 16 meters.
A puppy is tied to a leash in a back yard. His leash is 3 meters long, and he runs around in circles pulling the leash as far as it can go. What is the approximate distance the puppy runs in one lap?
A
between 13 and 14 meters
B
between 15 and 16 meters
C
between 17 and 18 meters
D
between 18 and 19 meters
E
between 20 and 21 meters
1 answer