SOLUTION: A rectangle has an area of 80 m2. The length is 4 m more than four times the width. What is the length of a diagonal of the rectangle?

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Question 1074635: A rectangle has an area of 80 m2. The length is 4 m more than four times the width. What is the length of a diagonal of the rectangle?
Answer by josgarithmetic(39627) About Me  (Show Source):
You can put this solution on YOUR website!
L for length
w for width

Your description gives system%28w%284w%2B4%29=80%2CL=4w%2B4%29.
Continue with that.




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w=4
L=20
Use Pythagorean Theorem formula for diagonal.