Question

HELP!!! Question below. @TheCleverOne

Answer 1

You will need to determine the total surface area of the bar of chocolate
Surface area is determined by \[2lw+2lh+2wh\]

Answer 2

Substitute the proper values and you'll have your answers :)

Answer 3

The problem is that I don't really understand how. :(

Answer 4

@TheCleverOne

Answer 5

@Tennis5518 please help???

Answer 6

@Learner11

Answer 7

@mayankdevnani

Answer 8

You have lenght width and height provided to you
It doesn't matter which is which
Try substituting 50 for l,90 for w, and 3.5 for h
Now solve

Answer 9

You have to cover entire chocolate,so all part need to be covered by wrapping outside the chocolate.
So you need to calculate CSA i.e curved surface area

Answer 10

that surface area gives you answer!

Answer 11

so do you know the formula of CSA OF CUBOID ?

Answer 12

You can refer to BRILL'S ANSWER !
This is what i said.

Answer 13

Not to sound dumb but what is CSA OF CUBOID ?
I'm sorry :(

Answer 14

https://www.quora.com/What-is-difference-between-perimeter-CSA-And-TSA-Help-me-in-understanding

Answer 15

@briannabug sorry,you have to calculate TSA !

Answer 16

http://www.web-formulas.com/Math_Formulas/Geometry_Surface_of_Cuboid.aspx

Answer 17

In simpler terms @briannabug
Solve
\[(2\times 50\times 90)+(2\times 50\times 3.5)+(2\times 90\times 3.5)\]

Answer 18

This what you do because length times width gives you one of the face, but then you multiply by two because there ATLEAST TWO congruent faces on a rectangle

Answer 19

The same applies to length times height and height times width

Answer 20

Okay, I got 9980? Sorry my OS was lagging

Answer 21

Yup that's right :)
Sorry didn't see this