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Mathematics 20 Online
skrtkobainn:

i need help

skrtkobainn:

A picture is 5 inches wide and 8 inches tall: A rectangle is shown. The length of the rectangle is labeled 5 inches. The width of the rectangle is labeled 8 inches. A photographer wants to use a scale factor of 2.5 to enlarge a picture. What will the area of the picture be after it is enlarged? (5 points) 40 in2 250 in2 100 in2 81.9 in2

Angle:

This is the same idea as the other question :) we do "scale factor" times the original side lengths so 5 times 2.5 and 8 times 2.5

skrtkobainn:

i got 20 and 12.5

Angle:

you got it! :)

skrtkobainn:

do i multiply them together

Angle:

yes! because the area for a rectangle is base times height

skrtkobainn:

so 250

Angle:

yup!

skrtkobainn:

ok

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