SOLUTION: Mary is swimming in a rectangular pool that is 25 feet wide by 60 feet long. If she swims diagonally across the pool,about how many feet does Mary swim? A. 13 B. 55 C.

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Question 613726: Mary is swimming in a rectangular pool that is 25 feet wide by 60 feet long.
If she swims diagonally across the pool,about how many feet does Mary swim?
A. 13
B. 55
C. 65
D. 85
Could someone please help!!
Answer by jim_thompson5910(35256) (Show Source):
You can put this solution on YOUR website!
Use the pythagorean theorem to find the length of the diagonal.

a^2 + b^2 = c^2

25^2 + 60^2 = c^2

625 + 3600 = c^2

4225 = c^2

c^2 = 4225

c = sqrt(4225)

c = 65

So the diagonal is 65 feet long.
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