Can someone please help me figure this out I don't know geometry nor measurement that well.

I don't know where to begin ;(

A right rectangular prism has a length of 15 millimeters, width of 3 millimeters, and height of 4 millimeters.
(idk how to put the photo I'm sorry)
What is the surface area of the prism?

2 answers

You will have 3 pairs of rectangles
SA = ( 2(15)(3) + 2(15)(4) + 2(3)(4) ) mm^2
= ...
234? :D