Jasmine`s surface area growing post

Waaazzzzaaaapp.




Rectangular prism:

Top:
A= lxw
A= 6x10
A= 60
A= 60x2
A= 120cm(2)

Side:
A= lxw
A= 2x10
A= 20
A= 20x2
A= 40cm(2)

Front:
A= lxw
A= 2x6
A= 12
A= 12x2
A= 24cm(2)


TSA: 120+40+24
TSA: 184cm(2)

Formulas:

lxw

The Net:

Triangular Prism:

Front:

A= bxh/2
A= 5x10/2

A= 25

A= 25x2

A= 50cm(2)

Top:

A= lxw

A= 2x15

A= 30

A= 30x2

A= 60cm(2)

Side:

A= lxw

A= 5x2
A= 10

A= 10x2

A= 20cm(2)

TSA: 50+60+20

TSA: 130cm(2)

Formula's:

lxw

bxh/2

The Net:

Cylinder:

(5cm)

R= d/2

R= 5/2

R= 2.5cm

C= (pi)d

C= 3.14(5)

C= 15.7cm

(10cm)

A= lxw

A= 15x15.7

A= 235.5cm(2)

A=(pi)rr

A= 3.14x 2.5 x 2.5

A= 19.625cm(2)

TSA: 19.625+19.625+235.5

TSA: 274.57

Formula's:

R=d/2

C=(pi)d

A= lxw

A= (pi)rr

The Net:

My Video on how to calculate surface area with: Karra and Stephanie

http://www.ustream.tv/recorded/5206934

PLEASE COMMENT if there are any mistakes (:

Karra's Scribepost February 21, 2010

For my scribe post I decided to chose the questions 3,4 and 7.

3. Sketch a net for each object.
a) hockey puck
b) chocolate bar
c) jewelery box

Answers:















4. Draw the net for each object. Label the
measurements on the net.

Answer:












































Rectangular Prism = A
Cylinder = B
Triangular Priam = C
Cylinder = D
Rectangular Prism = E

Jomari's Scribepost February 21,2010

On Friday, our class had to work on some questions in the textbook on pages 173 to 175. Here are the answers to questions 6,7, and










A.
B.
C.
D.
E.


A. Yellow
B.Green
C.Brown

Thanks for reading my scribepost. Please leave a comment.

Nadine's surface area scribepost

3. sketch a net for each object.

4. draw a net for each object. label the measurments on the nets

a.)

b.

answers

a.)

b.

10 simon designed tw0 nets

a.) build the 3-dobjects they form

b.) what does the nets each form

-both nets form a triangular prism

Asham Scribepost on Yesterdays Hmwk

Hey guys. Okay so I did not do the homework for that day, but I did it in class today :D. I believe for scribe 1 I was supposed to put down the definitions. Okay i'll get on with it because I have to go in 15 minutes.

Vertex - a point where three or more edges meet

Face - flat or curved surface

Edge - line segements where two faces meet

Net - For this one, since I didn't bother to add pictures for the other one, I'm going to show an example of what a net is and give a definition in my own words.

Lets use this cube as an example. It's a Three Dimensional Shape, but what if we squashed it. Or what of we "opened it up". It would probably look something like this. So basically by squishing we turned it into a net, at first it was 3D, and now its 2D. This is the Net of a cube.

Thank-you for reading my scribepost. If this is not what I was supposed to do, correct me and I will have it done in the morning kay thanks bye.

Althea's Scribepost, February 17, 2010

The question I'm doing is on page 169 (Math Links) question 7 and 9.


So, the answer is B, CD rack



THANK YOU FOR READING....PLEASE LEAVE A COMMENT ^-^

Jennifer's ScribePost on Surface Areas :]

Hello Everyone!

Here's what you need to have in your foldable in section 5.1

All of this in the key ideas section including the question 1 & 2



For the question number 1, what I put is she can be correct, because all you're looking for is the Top, Side and the Front. It isn't necessary to find out the bottom, the other side, and back of the object. You already know what you need to look for to draw the object right?

For question number 2, it isn't correct. Because if you tried to draw that with those Nets, It won't be exactly like the Math Textbook. So I would like change the front image to the top image, and from there, front to side.

Also in class, we did a "Show You Know Question" when I drew it, it looked very different then Mr.Harbeck done. Here is the question we've done.



And here is what I've done, I tried to draw the object standing up. The red square in the middle is where the hole was suppose to be.

Well I hope you enjoy my post!