Question

question 12
enlarge the picture below by a scale factor of 4.
what is the new length and the new width of the picture?
hint: the new picture will be bigger by a factor of 4.
7ft
5ft

Explanation:

Step1: Calculate new length

Multiply original length by scale - factor.
$7\times4 = 28$ (ft)

Step2: Calculate new width

Multiply original width by scale - factor.
$5\times4 = 20$ (ft)

Answer:

New length: 28 ft, New width: 20 ft