Answer:
254 [tex]cm^{2}[/tex]
Step-by-step explanation:
Surface Area = 2Lh+2Lw+2wh
L=4 cm
h=9 cm
w=7 cm
Surface Area = 2(4)(9)+2(4)(7)+2(7)(9)
Surface Area = (72+ 56 +126)[tex]cm^{2}[/tex]
Surface Area = (72+ 56 +126)[tex]cm^{2}[/tex]
Surface Area =254 [tex]cm^{2}[/tex]
