1 Answer

Slowik · Answer 1 · 2024-02-13T07:02:06+0000

Answer:

136 mm²

Explanation:

To find the surface area of rectangular prism, find the area of each of the six faces and add them all.

$\boxed{\text{\bf Surface area of rectangle prism= 2*(lb + bh + hl)}}$

$\sf = 2*(3*8 + 8*4 +4*3)\\\\=2*(24 + 32 + 12)\\\\= 2 * 68\\\\= 136 \ mm^2$

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