SOLUTION: A rectangular photograph is 10 cm x 8cm. A border of uniform width is added to all sides. What is the new area and perimeter?
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Question 976474: A rectangular photograph is 10 cm x 8cm. A border of uniform width is added to all sides. What is the new area and perimeter? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! b = width of border
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Area = (W + b)*(L + b)
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Perimeter = 2(W + b) + 2(L + b)
= Original Perimeter + 4b
