Question

i have a question in math can some one help me?

Answer 1

Maybe, but only if you tell us what the question is.

Answer 2

okay what grade u in?

Answer 3

I'm probably not in a grade any more.

Answer 4

so ummm ummm hmm your out of school?

Answer 5

For quite some time.

Answer 6

ohokay well im in seventh

Answer 7

and its on surface area of prisms

Answer 8

OK...

Answer 9

okay hang on let me go to it

Answer 10

thats the problem

Answer 11

Not too bad. They give you all the information you need. There are five surfaces, three rectangles and two triangles. Two of the rectangles are the same, and the triangles are also the same. Find the areas for each side, and add them up.

Answer 12

oh okay so all you have to times all the sides like the top and botton and side to side and yeah so i do that?

Answer 13

Formulas to remember:

Area of a rectangle = length times width.

Area of a triangle = 1/2 base times height.

The numbers you need are all on the diagram. Remember that the figure has some symmetry, so if you measure at one end, the corresponding measurement is the same at the other end.

Answer 14

oh so its like telling me to get the volume?

Answer 15

Pretty much. Figure it out and put it on here, I'll let you know if you get it right.

Answer 16

Not the volume, the surface area. Two different things. Volume is how much water it would take to fill it up. Area is how much flat material it would take to make the shape.

Answer 17

okay i will and hmm so its like
13*10=130
13*18=234
12*10=120

Answer 18

13*12=156

Answer 19

sooo like that?

Answer 20

@ElvenBlackout have you done this unit and lesson yet so two people can help me:)(:

Answer 21

Your calculations aren't all wrong, but you are approaching the problem haphazardly. Do it one step at a time.

Answer 22

hmmmmm ummm what do you mean soo then what do i do

Answer 23

???

Answer 24

Area of the two triangular ends:\[A_{\triangle}=\frac{1}{2}bh=\frac{1}{2}(10)(12)=60\]Don't forget, there are two such ends.

Answer 25

wait soooo you have to ummm times both by half and then times them together?

Answer 26

Now, find the area of the two sides that are the same:

\[A_s = lw=(13)(18)=234\]Again, recall there are two such sides.

Answer 27

so i have to write the problem like that???????

Answer 28

The area of the base is figured the same way:

\[A_b=lw=(10)(18)=180\]

Answer 29

ok, state your question again?

Answer 30

if you can, do it in \(LaTeX\) :P

Answer 31

@ElvenBlackout can you alsohelp me please? and i no you have to times thoes so you have to do length times w and okay ill post it again hang on

Answer 32

and idkhow to do it in LATEX

Answer 33

Now, add them all up:\[2A_{\triangle}+2A_s+A_b=2(60)+2(234)+180=120+468+180=768\]

Answer 34

so first you times then you add them all together

Answer 35

right?

Answer 36

Absolutely. Think about the problem. You want to know how much is there. What's there is the sum of all the sides. Figure out how big each side is, then add them up.

Answer 37

okay so first you times all the sides together and then you add them all together and then you get your answer. thanks so muck @AnimalAin !!! and what it is asking me is for what letters and so i no what letters now and now i no how to do that:)(: thanks!!!

Answer 38

okay can some one help me please?

Answer 39

@ElvenBlackout @MelissaHolmes @melacho

Answer 40

i am kinda braindead right now... my dad is coming home and i am on my tablet...

Answer 41

okay hmmm well can some one help me please @kmullis6 @MommyHelper @ballerina_at_heart @bakonloverk @jontonbon some one please???

Answer 42

@hartnn

Answer 43

@Preetha @SeaTurtle113 @iambatman

Answer 44

i can't help her because my brain is dead, but can you guys?

Answer 45

@BTaylor @thomaster

Answer 46

@aprilann143 @Shay17 @foreverjennnicole @johnweldon1993 @MyChem

Answer 47

@wildchild588

Answer 48

can some one help me to understand this please???

Answer 49

they gave you 18 so what do you think 18 is in this problem

Answer 50

so 18*13 right? cuz you go to B and C

Answer 51

wait so all you do is A,B and CD so you have to add thos and then you will have E left over so i think you leave E

Answer 52

right?

Answer 53

what are you trying to do find the area of the face b ?

Answer 54

you have to times A,B and get that answer then you have to find C,D

Answer 55

b's base is 18 and height is 10 so yes you multiple the base times the height

Answer 56

multiply*

Answer 57

ohhhh... its telling me to find A.D and B,C and then E

Answer 58

okay thanks @Shay17