Friday, March 9, 2012

Casey's Surface Area Post And Volume Post

Rectangular Prism
T=lxw
T=5x10
T=
50m²

F=lxw
F=6x10
F=
60m²

S=lxw
S=6x5
S=
30m²

TSA=2(T+F+S)
TSA=2(50+60+30)
TSA=2(140)
TSA=
280m²

Triangu
lar Prism

R1=10x5=50cm
R2=8x5=40cm
R3=9x5=45cm
50+40+45=135cm


bxh/2
8x9/2
72/2

36cm

135+36+36= 207cm²


Cylinder

r=d/2
r=8/2
r=
4mm

c=πd
c=3.14x8
c=
25.12mm

lxw
25.12x12
301.44mm²

Area of circle=πr²
Area of circle=3.14x4x4
Area of circle=
50.24mm²

TSA=circle+circle+rectangle
TSA=50.24+50.24+301.44
TSA=
401.92mm²




Volume Of Triangular Prism


bxh/2xh
3x5/2x8.5
15/2x8.5
7.5x8.5= 63.75cm³


Volume Of Rectangular Prism

lxwxh
20x8x16
2560cm³


Volume Of Triangular Prism with Fraction


bxh/2xh
4x8/2x6.5
32/2x6.5
16x6.5
104cm³

104x3/8= 312/8= 39cm³


Volume Of Cylinder


r=d/2
r=12/2
r=6 cm

Area of Basexh
π.r.r.h
3.14x6x6x15
1695.6 cm³







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