Answer:
1) 144 ft
2) 292.5 ft
Step-by-step explanation:
1) SA= lw+ 4(1/2( l )h)
SA=6*6+ 4(1/2( 6 )9)
SA=36+ 4(1/2( 6 )9)
SA=36+ 4( 3*9 )
SA=36+ 4( 27 )
SA=36+ 144
2) SA= 1/2( / )h+ 3(1/2( l )h)
SA=1/2( 15 )13+ 3(1/2( 10 )13)
SA=7.5*13+ 3 ( 5*13 )
SA=7.5*13+ 3 ( 65 )
SA= 97.5+ 3 ( 65 )
SA=97.5+ 195
SA= 292.5
