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Answer on Algebra Question for nicole

Question #6007
A swimming pool is 28 feet long and 21 feet wide. How many feet does a boy save by swimming diagonally across the pool instead of swimming the length and then the width of the pool?
Expert's answer
The diagonal length of a swimming pool is D = sqrt(28² + 21²) = sqrt(1225) = 35 feet.
So, the profit is (28+21)-35 = 49-35 = 14 feet.

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