Tuesday, March 14, 2006

Marielou's Growing Post

DAY #1

question #1. the area of a rectangle
http://img156.imageshack.us/img156/7739/mathrectangle1wi.png Click mee!

question #2. the area of a triangle
http://img211.imageshack.us/img211/2720/mathtriangle7au.png Click mee!

question #3. the relationship between the area of a rectangle and the area of a triangle:
the relationship beteww the two is that a rectangle is made up of two triangle, that are right triangles ( a right triangle is a triangle with a 90 degree angle)

Mr. Tamayo's Comments:
"good job on the math"

DAY #2

here's what i did:










now, to find the total surface area (T.S.A) you add the two areas together
so it would be like this:
T.S.A= A+B
T.S.A= 50+56
T.S.A= 106cm2

now to solve it a 2nd time, but different:











how i solved this a sceond time is that i calculated the measurments all the way around the shape. i added the the missing piece in the shape making it a complete rectangle. then when you find the total surface area, you subtract the missing shape from your answer. so it would be like this:
A= AB-M (ab for rectangle a & b, and m for the missing shape)
A= 120-24
A=96cm2

so thats how i did this question... hope i did it right! ill be back for the next question =D

Mr. Tamayo's comments:
" your good, i forgot how to do this"

DAY #3

now to show what i did to solve this question
















so i guess i have to go and leave comments now! =) so, ill be back with day 4 =D
Mr. Tamayo's comments:
"another comment.... hmmm... good!"

DAY #4 (The Weekend and March 20)

heres my rectangular prism:










next i did this:



















to find the anxwer, you simply add them all together, like so:
35 + 35 + 28 + 28 + 20 + 20= 166 cm2

i will get my dads comment tomorrow... cuz hes sleeping
Mr. Tamayo's comment
"ugh.. what... umm.... good"

DAY #5
(yeah! finially blogger worked..... tried MANY MANY times)

time for another picture! (used someother uploaded because the one on blogger wasnt working, will fix it later!)

http://img124.imageshack.us/img124/1372/triangularprism8vy.png click mee!!

next i drew out all the sides(/ or shapes?)

http://img419.imageshack.us/img419/46/mathprismtri0ba.png click mee!!

to figure out the total surface area you add all the total areas together, like so....
20 + 20 + 40 + 50 + 60= 190 cm2

so thats how i did it!

Mr. Tamayo's comment
"good.... im trying to sleep"




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1 Comments:

At 8:22 PM, Blogger Mr. H said...

Lets crop your images tomorrow. Your post will be excellent once everyone can see them.

 

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