Find the surface area of the prism.

a.
2299 mm2

b.
2954.5 mm2

c.
3173 mm2

d.
498,180 mm2

Same process as  the  rectangular prism problem. This time two of the sides are triangles, so we use 0.5bh instead of l*w.

(38*30) + (38*19) + (38*23) + 2(0.5*19*23) = 3173 mm^2