Annie is baking a square-shaped cake for her sister's birthday. She is expecting 18 guests. She plans to cut the cake into square-shaped pieces 2 inches long. The cake must be big enough so each guest gets 2 pieces. What must the length of the cake be for each guest to get 2 pieces each?

Question

Vocaloid · Answer

Area of a square is s^2, where s is the side length.

Calculate the area of one 2 by 2 slide. Multiply by 2 since each guest gets 2 slices. Multiply by the number of guests.

At this point you have the total area of cake needed. From there, area = s^2 so s = sqrt(area). Since the entire cake is also square, take the square root of the entire area to get the side length