glane4907
26.02.2021 •
Mathematics
Lin is making two pans of brownies. She lines the bottom of her first pan with aluminum foil. The area of the rectangular piece of foil is 11 and 1/4 sq inches. Its length is 4 and 1/2 inches. What is the width of the piece of foil?
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Ответ:
Ответ:
267.45 sq units
Step-by-step explanation:
Area of shaded region = Area of Square minus Area of Circle
the sides of the square are twice the radius of 9, therefore 18
A(square) = 18² = 324
A(circle) = π9² = 81π ≈ 56.55
324 - 56.55 = 267.45