SOLUTION: A rectangle has a length twice as long as the width and an area of 50 square feet. How long is the diagonal of the rectangle?

Question 384067: A rectangle has a length twice as long as the width and an area of 50 square feet. How long is the diagonal of the rectangle?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
width = x
lebgth =2x
area =50 ft^2
..
L*W= Area
x*2x=50
2x^2=50
/2
x^2=25

x=5 feet the width
length = 2x= 10 feet
..
Diagonal^2= L^2+W^2
D^2=5^2+10^2
D^2=125

d=11.2 feet the diagonal
..
m.ananth@hotmail.ca

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