Question

Cody is baking a square cake for his friend's wedding. When served to the guests, the cake will be cut into square pieces 1 inch on a side. The cake should be large enough so that each of the 121 guests gets one piece. How long should he make each side of the cake?

Answer 1

Because each guest gets a 1square inch piece the cake needs to be 121 square inches.  Because it is a square cake we need to figure out what times itself equals 121 and the best way to do that is to find the square root of 121 which is 11

each side should be 11 inches

I hope I've helped!