Complete Question:
A dog is leashed to the corner of a house with a 15 foot leash. How much running area does the dog have? Round your answer to the nearest square foot.
Answer:
The dog has about 707 square feet of running area.
Explanation:
From the illustration in the question, one can conclude that the dog can travel in a circular path.
So, the length of the leash represents the radius and we are to calculate the required area using the area of a circle.
We have:
![Radius = 15ft](https://img.qammunity.org/2021/formulas/mathematics/high-school/mfeo4r6xmcvtt4owmrbbiosl5r89p8xdq1.png)
![Area = \pi r^2](https://img.qammunity.org/2021/formulas/mathematics/middle-school/d8idhdkbvny3nuf23y6dswar31w3y3ic8z.png)
Where
and
![\pi = 3.14](https://img.qammunity.org/2021/formulas/mathematics/middle-school/y04rzsjmfedht1b41g0s1en1rzhn5jx8g3.png)
So:
![Area = 3.14 * 15^2](https://img.qammunity.org/2021/formulas/mathematics/high-school/yrs41edavh72ie3t0awt06ip26nh28k3ew.png)
![Area = 3.14 * 225](https://img.qammunity.org/2021/formulas/mathematics/high-school/4esgybvoqm3eqz4k7pwn89wp9fh1abdgcg.png)
![Area = 706.5ft^2](https://img.qammunity.org/2021/formulas/mathematics/high-school/q2nl5wvc9d3xdmis4bet0ri57gy930swsc.png)
![Area = 707\ ft^2](https://img.qammunity.org/2021/formulas/mathematics/high-school/mt92cer2nyljqswm0n8fnxa91j5m3dppv0.png)