Monday, March 12, 2012

Diana's Surface Area Post and Volume Post.













































Heres a video that will teach you about Surface Area.






Volume




































Romiel's Suface Area and Volume Post

The net of a rectangular prism




How to find the surface area of a rectangular prism
The net of a triangular prism.

How to find the surface area of a triangular prism.

The net of a cylinder.

How to find the surface area of a cylinder


V= (b x h1 /2) x h2
V= (3 x 5/2) x 8.5m
V= 15/2 x 8.5m
V= 7.5m2 x 8.5m
V= 63.75m3






V= l x w x h
V= 20 x 8 x 16
V= 2560cm3





V= (b x h1/2) x h2
V= (2 x 8) x 6.5cm
V= 16cm2 x 6.5cm
V= 104cm3

3/8 = 0.375
0.375 x 104cm3 = 39cm3



R= d/2
R= 12/2
R= 6cm

V= π x r2 x h
V= 3.14 x 62 x 15cm
V= 3.14 x 36 x 15cm
V= 1695.6cm3






























Jeremy`s Surface Area Post and Volume Post

The net of a rectangle.


How to find the surface area of a rectangular prism
The net of a triangle.

How to find the surface area of a triangular prism.


The net of a cylinder



How to find the surface area of a cylinder




Rego's Surface Area and Volume Post
















This is the rectangular prisim.

















This is the triangular prisim.


















Volume:










Triangular Prisim








V= bxh x h
       2
V= 3x5 x 8.5
        2
V= 15 x 8.5
       2

V= 7.5 x 8.5
V= 63.75m2









Rectangular Prisim






V= L x W x H
V= 20 x 8 x 16
V= 2560cm3








Triangular Prisim






















Cylinder



Sunday, March 11, 2012

Dorian 8-14 TSA continue

r=d/2
r=8/2
r=4mm
c=pi d
c=3.14x8
c=25.12
LxW
12.25.12= 301.44mm
a=pi r2
a=3.14x42
a=3.14x16
a=50.24mm2
TSA=301.44+50.24+50.24
TSA=401.92mm2






Dorian 8-14 Surface Area Post






T: LxW
10x5=50m
F: LxW
6x10=60m
S: LxW
5x6=30m
TSA= 2(50+60+30)
TSA= 2(140)
TSA= 280m





LxW
27x5=135cm
BxH/2
9x8/2
72/2
36cm
135+36+36=207cm

Jordan's surface area post






RECTANGULAR Add Image




PRISM





shape net







calculate surface area














l x w
Top Front Side
= 5 x 10 = 50 = 6 x 10 = 60 = 5 x 6 = 30



TSA =2 (T + F + S)
=2 (50 + 60 +30)
=2 (140)
=280cm2