Respuesta :

The answer is 675cm squared (C)
irspow

Answer:

Step-by-step explanation:

Surface area of a rectangular prism is

A=2(xy+xz+yz) where x,y,z are its dimensions so

A=2(15(10)+15(7.5)+10(7.5)

A=2(150+112.5+75)

A=2(337.5)

A=675cm^2