Question

Use the net to find the surface area of the prism 11cm, 8.5cm, and 24cm

Answer 1

S.A. = 1,123 cm²

Explanation:

The formula of a surface area of a rectangular prism:

`S.A.=2(lw+lh+wh)`

l - length

w - width

h - height

We have l = 11cm, w = 8.5cm and h = 24cm. Substitute:

`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`