Assuming a standard three-ring binder size of 11 inches by 8.5 inches, and adding a 1-inch spine, the total dimensions would be 11 inches by 10.5 inches.
To determine the amount of material needed to cover, we first need to calculate the surface area of the binder.
Surface area = length x width x 2 + width x height x 2 + length x height x 2
Surface area = 11 x 10.5 x 2 + 10.5 x 1 x 2 + 11 x 1 x 2
Surface area = 231 + 21 + 22
Surface area = 274 square inches
Therefore, approximately 274 square inches of book cover material is needed to cover the three-ring binder.
How much book cover material is needed to cover the three-ring binder? Round your answer to the nearest whole number.
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