Why do circular pizzas come in square boxes?

It is much cheaper to mass produce square boxes than round ones since a square box can be made from a single sheet of cardboard. Square boxes are also much easier to store since they can remain flat until needed.

Step-by-step explanation:

:)

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have