Question

help math proplom
what is the formula for finding the surface area of a rectangular prism?

Answer 1

a good way to remember it is

surface area of prism = 2 * area of base + lateral surface area

then lateral surface area is just perimeter x height

in the case of rectangular prism, the area of the base is lw

then the perimeter is 2l + 2w

so the surface area is just \[\huge SA = 2(lw) + (2l + 2w)h\]
if you simplify that...
\[\huge SA = 2lw + 2lh + 2wh\]
got it?

Answer 2

ok so thatss the answer?

Answer 3

read the *whole* post...you'll know...

Answer 4

ok thanks

Answer 5

welcome