The length of a rectangle is twice the width. If the area is 64^2cm, find the dimensions of the rectangle. Use the table or a calculator if necessary. Round to the nearest hundredths.

Question

I do not know how to set the problem up. Thank you for your help.

Answer 1

width ----- x
length ---- 2x

x(2x) = 64
2x^2 = 64
x^2 = 32
x = √32 = .....