Question

a pc. of wire 42 cm. long is bent into the shape of a rectangle whose width is twice its length. find the dimensions of the rectangle??

Answer 1

length = l
width = 2l
2 ( l+2l ) = 42
2 (3l) = 42
6l =42
l= 42/6
l=7

width =2x7=14

Answer 2

2(2x + x) = 42

Answer 3

Like she did.