Answer:
The dog has 1357.5 square feet of running space.
Explanation:
48 feet is the diameter of the circle in which the dog can run, minus 1/4 of the total circle (assuming the dog can not run through walls).
The formula of how to find the area of a circle is...
A = π r²
A stands for area, pi(π) is 3.14, and r means radius.
Radius is half of the diameter, so the radius would be 24 feet. Let's plug those numbers into the formula:
A = π x 24²
A = π x 576
A = 1809.56 square feet
Now, we have to subtract 1/4 of 1810 (rounded up).
1810 times 0.75 = 1357.5 feet.
I hope this helps you! :-)