Area for a one-layer cake, with each layer being 9" x 1".

Area for a two-layer cake, with each layer being 8" x 1.5".

Area for a one-layer cake, with each layer being 9" x 1" (better response).

Area for a two-layer cake, with each layer being 9" x 1" (better response).

Area for a two-layer cake, with each layer being 8" x 1.5" (better response).

Frosting and area for a one-layer cake, with each layer being 9" x 1".

Frosting and area for a one-layer cake, with each layer being 10" x 1".

Frosting and area for a one-layer cake, with each layer being 10" x 1.5".

Frosting and area for a two-layer cake, with each layer being 9" x 1".

Frosting and area for a three-layer cake, with each layer being 8" x 1".

Frosting and area for a three-layer cake, with each layer being 8" x 1.5".