Posted by DestinyLashea on Tuesday, May 10, 2011 at 2:29pm.
Find the surface area of the closed rectangular box shown
6cm, 5cm, 3cm
S.A.= (LW)+2(HL)+2(HW)
I did: (5x6)+2(5x3)+2(6x3)=96 am I correct?

Essential Mathematics 2  MathMate, Tuesday, May 10, 2011 at 4:01pm
6cm, 5cm, 3cm
This formula for the surface area is for an open box with length L and width W:
S.A.(open)= (LW)+2(HL)+2(HW)
For a closed box, it would be:
S.A.(closed)= 2(LW+HL+HW)
You would do: 2(5x6)+2(5x3)+2(6x3)=? 
Essential Mathematics 2  DestinyLashea, Tuesday, May 10, 2011 at 5:11pm
126. thanks

Essential Mathematics 2 :)  MathMate, Tuesday, May 10, 2011 at 5:16pm
You're welcome!