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Mathematics
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|dw:1433950053698:dw|
each square is 5. find the surface area, ive been doing this for 3 hours, on this type of stuff.

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OK you gotta have to count squares. But you got to do it in smart way. OK clearly this is 3D. But imagine looking it at certain angle (front, top, and side), so it would looks like 2D Then there will be SAME number of square on opposite sides of whatever you are "looking" at. Get the plan?
got it!
For example, if you are looking at top, you will kind of see this: |dw:1433950339164:dw|
then multiply that by 2, for other side (bottom)
which would be 16?
Yes there are 16 squares for TOP and BOTTOM. Now count front.
16 for the front
you would see this:|dw:1433950434314:dw|
yeah 16. so double that for other sides and you have 32
Ok now side.
14?
I got 12
my bad! counted 2 extra block
|dw:1433950631697:dw|
OK now double that. 24
Now add them all together: 24 + 32 + 16 = ?
72
Yep. So there are 72 squares. Now for each square, what is area?
5 mm * 5 mm = ?
10mm^2
No. multiply 5 by 5. What do you get?
A = lw
5/5=1
im a very slow learner, sorry :(
To get area, you just multiply length by width, right?
yes
OK, so length of square is 5 and width is also 5
So you have \(Area = 5\times5\)
okay, which would be 25
Yeah Area of EACH square is 25. And there are 72 squares. So multiply 72 by 25. That would be your surface area.
which would be 1,875
I got 1800?
\(72\times25\)
my bad, I don't no why my calculator is messing up
OK, so you got 1800, right? So your surfacce area is\[SA = \boxed{1800~\text{mm}^2}\]
IS that clear?
Just got to count the smart way, kinda.
thanks so much, I appreciate and thanks for your patience!
No problem

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