Question

a picture is 5inches wide and 8inches tall:A photographer wants to use a scale factor of 2.5to enlarge a picture.what will the area of the picture be after it is elarged

Answer 1

We can determine the area of the enlarged picture as follows:

*First, we determine the new dimensions, that is:

`5\cdot2.5\text{ = 12.5}`
`8\cdot2.5=20`

*Secondly, we find the area using the formula of area for a rectangle, that is:

`A=20\cdot12.5\Rightarrow A=250`

From this, we have that the area of the picture after being enlarged equals 250 in^2.