SOLUTION: A gardener marks out a new section of lawn that is supposed to be a rectangle with sides of length 15m and 10m. To check he has marked out a rectangle he measures the length of the

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Question 339363: A gardener marks out a new section of lawn that is supposed to be a rectangle with sides of length 15m and 10m. To check he has marked out a rectangle he measures the length of the diagonal. How long should this be?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
Apply the Pythagorean theorem:
.
Let d = length of diagonal
then
d^2 = 15^2 + 10^2
d^2 = 225 + 100
d^2 = 325
d = 18.028 m