Lee's mural is a triangular shape. Each side is 5 feet long. His friend's mural * 1 s the same shape, but he enlarged it to 12 feet long. What scale factor did _eo's friend use to create the mural from the original?
To find the scale factor, divide the length of the enlarged mural by the length of the original mural:
12 feet / 5 feet = <<12/5=2.4>>2.4
Therefore, Lee's friend used a scale factor of 2.4 to create the enlarged mural.