Respuesta :

the answer is 240cm^2, so B.
Surface Areas of Pyramids and Cones Practice: connexus
1) B, 448cm^2 
2) D, 209pi cm^2
3) D, 351m^2
4) B, 240cm^2
5) C, 561.1pi cm^2
Just took it so they are all correct! your welcome