A 4 by 5 inch photo is enlarged by multiplying every dimension by 2 to form a similar 8 by 10 inch photo. Find
the ratio of the perimeters and areas of the larger photo to
that of the smaller one.

Perimeter ratio = 2:1

Area ratio = 4:1

Step-by-step explanation:

Perimeter

Perimeter of the smaller photo =

inches

Perimeter of larger photo =

inches

Ratio:

Perimeter of larger photo : perimeter of smaller photo =

Area

Area of smaller photo =

inches²

Area of larger photo =

inches ²

Ratio

Area of larger photo : area of smaller photo =

∴The ratio of the perimeters = 2:1, and the ratio of the areas = 4:1

Hope this helps :)

pooopoopopoopop

step-by-step explanati∵∵∴∴on:

i think it would be 42cm