Answer:
S.A. = 1,123 cm²
Step-by-step explanation:
The formula of a surface area of a rectangular prism:
[tex]S.A.=2(lw+lh+wh)[/tex]
l - length
w - width
h - height
We have l = 11cm, w = 8.5cm and h = 24cm. Substitute:
[tex]S.A.=2\bigg((11)(8.5)+(11)(24)+(8.5)(24)\bigg)\\\\S.A.=2(93.5+264+204)\\\\S.A.=2(561.5)\\\\S.A.=1,123\ cm^2[/tex]
