Question 2 A₁ 10 Rope A2 A3 10 Barn A₂ A calf is tethered to one corner of a barn with a rope 90 feet long. The dimension of the barn is 10 feet by 10 feet. The calf can graze from A₁, A₂, and A3, as shown in the figure below. What is the maximum grazing area for the cow? [Hint: Read about Circle Sector to get area A₂]

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