This is a rectangular cake, and there are 3 measurements, meaning that you are evidently finding volume.
Let's go back, first off, the formula for volume is...
V = L x W x H (Length, Width, Height)
Your measurements are 9 in, 13 in, 2 in.
All you need to do is follow the formula and multiply them.
9 x 2 = 18
18 x 13 = 234 [tex] in^{2} [/tex]
Your answer is C: 234 [tex] in^{2} [/tex]
Hope this helps!
