What is the surface area of the rectangular pyramid below?

Answer: 675 units^2
Step by step explanation: the bottom is 15*15=225, and the sides are 4(15*7.5)
Answer: C.) 675 units squared because i used the pagetherom theory to do 15 squared + 15 squared + 15 squared = 625 o i just did another 2 squared for the other side. i hope it helps.