11) Bree is going to put icing on all the surfaces of a piece of cake like the one shown, except for the bottom. If the height of the triangle is 5.7 inches, how many total square inches of cake will need icing?

11 Bree is going to put icing on all the surfaces of a piece of cake like the one shown except for the bottom If the height of the triangle is 57 inches how man class=