24 pietro's pizza makes rectangular pizzas. the
shop posted an inviting message on its sign,
"now! our large is 20% bigger! " the original
large pizza had dimensions 20 inches by
15 inches.
a. assume 20% bigger means that the
dimensions of the new pizza are 120% of
the original size.
i. why is the new pizza similar (in shape)
to the original pizza?
ii. what is the scale factor relating the
original pizza to the new pizza?
iii. what are the dimensions of the new pizza?
iv. calculate the ratio of the perimeter of the new pizza to that of the
original. how is this ratio related to the scale factor?
v. calculate the ratio of the areas of the new pizza to the original pizza.
how is this ratio related to the scale factor?