Asap it's urgent !
a tower is composed of a prism with a square base and a pyramid. the base length is 20 meters, and the height of the prism is 40 meters, while the slant height of the pyramid is 10√2 meters. what is the total surface area, including the bottom base?
a. 400√2 + 3,600 m^2
b. 200√2 + 3,600 m^2
c. 400√2 + 400 m^2
d. 4000√2 m^2