Question

PLEASE HELP!!!

Answer 1

PART A:

NET A IS THE CORRECT ANS... NET B IS WRONG

PART B:

AB is... 3 in.

BC is... 4 in.

CD is... 7.2 in.

PART C:

A=ah+bh+ch+1

2﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=7.2·5+4·5+4·5+1

2·﹣7.24+2·(7.2·4)2+2·(7.2·4)2﹣44+2·(4·4)2﹣44     ≈88.55363

So, the surface area is 88.55

Hope it helps...