Question

Which equation could be used to find the surface area of the net of the triangular prism shown?
SA = (1/2)(5)(12) + (5)(2) + (12)(2) + (13)(2)
SA = (1/2) (5)(13) + (1/2) (5)(13) + (5)(2) + (13)(2) + (12)(2)
SA = (1/2)(5)(12) + (1/2)(5)(12) + (5)(2) + (12)(2) + (13)(2)
SA = (2)(5)(13) + (5)(2) + (13)(2) + (12)(2)

Answer 1

would need to see a picture of the net to be able to provide better help

but try to see which equation sums up the area of all the faces exactly with no missing sides or duplicates

remember that area of triangle = (1/2)bh and area of rectangle = lw

Answer 2

thanks