Erin is wrapping presents for the holidays. She has a box that measures 20 cm x 14 cm x 14 cm. How many square centimeters of wrapping paper does she need to cover the box without overlapping?
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There are 2 sides that are 14 x 14 and 4 sides that are 14 x 20.
Find the area of each one:
14 x 14 = 196 cm^2
14 x 20 = 280 cm^2
Now find the total of all sides added together:
196 + 196 + 280 + 280 + 280 + 280 = 1512 cm^2
She needs 1512 cm^2