Respuesta :

PSN03

Yo sup??

Dude chill....u will pass for sure :)

SA of composite figure=sum of SA of individual faces

=SA of 2 triangles+SA of rectangle 1+SA of lower cuboid

=2*1/2*8*10+2*9*14+3*10*14+2*10*10

=80+252+420+200

=952 ft^2

Hope this helps.