precal question

Question

A cow is tethered by a 110-ft rope to the inside corner of an L-shaped building, as shown in the figure. Find the area that the cow can graze. (Let a = 10 ft, b = 60 ft, c = 110 ft, d = 70 ft, and e = 60 ft.

 Round your answer to the nearest whole number.)

 ft²

Answer 1

It's a quarter circle with radius 110

1/4 * pi * 110^2 = 9507 + 1/7