The directions on a box of Luigi's pizza mix are as follows: Spread the dough to the edges of a circular pan or a 10-inch by 14-inches rectangular pan. You will need to use the following formulas to answer the questions below.

For a circle: A=r2 where = 3.14C=2r

For a rectangle: A=Iw P =2l +2w

a. If you used the same amount of dough, how large a circular pan would you need to make a pizza of the same area and thickness as one made in the rectangular pan?

b. Some of your friends who are coming over for pizza prefer more of the edge crust. Which pizza- the circular one or the rectangular one- is most appropriate for these edge-crust lovers?