Raquel's scribepost for October 12th

Today, in math class we had to solve some questions. (By the way, I'm going to be taking pictures instead of drawing it on paint and typing how to solve it cause, I think it's easier to take pictures so yeah. )
Such as:





Yeah, those are the questions in the beginning of the class. ( If you can't see the picture, GET GLASSES. just kidding. just click it to make it really large. (: )

Then, Mr.Backe taught us how to find this triangular roof. This is how you solve it:


We did a similar question which looks like:

That's pretty much it on what we did for today's math class. :)

HOMEWORK:
You have to solve these shapes:

( Remember to click the pictures if you can't see it!!! )
Mr.Backe is also collecting the foldables and the journals tomorrow. So make sure your done it all.!!!!!!
MAAAAATH TEST TOMORROOOOOOW!!
I pick .................. KATHLEEN MAULA FOR NEXT SRIBEPOST. Love you Kathleen. :) Hope you have fun . Bwuahahahhaha.

Finding the suface area for the check your understanding.

So now we have the pool stairs and all the dimensions with.As it is shown in the picture below the side is sort of not a shape.We have a way to find the area of that.Cut the little edege off.Now we have 20 x 30, and for the rest of that object(the big piece) 40 x 60 because 30 is cut off from 90.We square it because there is two of these objects.Then we add the rest.80 x (40 + 60 + 20 + 30 +20).So the formula is:
2{20 x 30 + 60 x 40 } + 80 (40 + 60 + 20 + 30 + 20)
2(600) + (2400) +80 (170)
2(3000)+13600
6000+13600
19600 cm squared.



Now for the house that everyone has a hard time with. Before I start this you have to know that the bottom is something that you do not need fo this part. It isn't visable and pressed against something so we can't use it.Now for the triangles it is base x hieght divided by 2.Then we square it.Then we find the area for the rectangle and add the rest which is timesed by 10.
Here is how it is written:
2{4 x 6 divided by 2 + 5x6 } + 10(5+5+5+5)
2(12) + (30) + 10 (20)
2(42)+200
84+200
284 m squared
The next scriber is John.Good luck mister president.

Surface Area Scribe Post

Hi everyone. On Friday our test was canceled so we learned about finding the surface area of a Rectangular prism, which has length, width, as well as height.

Now. Here is a rectangular Prism, with some random numbers. Today the unit I am going to use is centimeters.

The length is 2 cm, the width is 5cm, and the height is 3 cm.

Formula: 2(lw)+2(lh)+2(wh)
2(2cm x 5cm) = 20, 2(2cm x 3cm) = 12, 2(5cm x 3cm) = 30cm
20+12+30 = 62
Our surface area is 62 cm2

If my answer is wrong, please correct me. Basically, all I did was follow the formula. Thanks for reading. And don't forget to study for the test we have on symmetry tomorrow.

Person I am choosing to scribe next: KENNY