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. ​

The area that he has to run is a [3/4] circle with a radius of 15ft.....so

(3/4) pi * (15)^2   = 520 sq. ft     [rounded]

I was also looking for this answer, but 520 doesn't seem to be the right answer. If anyone has another answer please help. 

I was also looking for this answer, but 520 doesn't seem to be the right answer. i did it again and got 530.

530 Seems to be correct

If the leash was 20ft long the answer would be 942 :)

its 100000000000000000000000000000000000000000000000000000000000000000000000000000000000 sq. ft.