SOLUTION: if the length of a rectangle is 3 feet longer than the width and the diagonal is 15 feet then what are the lenght and width?

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Question 174278: if the length of a rectangle is 3 feet longer than the width and the diagonal is 15 feet then what are the lenght and width?
Answer by nycsub_teacher(90)   (Show Source): You can put this solution on YOUR website!
If the length of a rectangle is 3 feet longer than the width and the diagonal is 15 feet, what is the length and width?
width = x
length = 3 more than the width = (x + 3)
diagonal = 15
Here is your equation:
x^2 + (x + 3)^2 = 15^2
Can you finish now?

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