top and bottom 2*9*12 = 216
sides 2*5*12 = 120
ends 2*5*9 = 90
sum = 426
Find the surface area of the prism 5m 9m 12m
1.426m
2.306m
3.336m*
4.213m
3 answers
thank you, Damon!
You are welcome. Always draw a picture.