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Friday, March 9, 2012

Patricia's Surface Area and Volume Post

Rectangular Prism



T= 5x10=50
F= 10x6=60
S= 5x6=30
TSA = 2 ( T+F+S )
TSA= 2 (50+60+30)
TSA= 2 (140
)
TSA= 280
m2

Triangle Prism




lxw
5x10= 50
5x9= 45
5x8= 40

bxh/2 9x8/2 72/2= 36

36+36+50+45+40=
207cm2

Cylinder
2(πr²) + (πdh)
2(3.14x16)+(3.14x8x12)
2(50.24)+(301.44)
100.48 + 301.44 =
401.92mm2
VOLUME
V= lxwxh
V=20x8x16
V=2560cm3
V= bxh/2 xh
V= 5x3/2 x8.5
V= 15/2 x8.5
V= 7.5x8.5
V= 63.75³
V= bxh/2 xh
V= 4x8/2 x6.5
V= 32/2 x6.5
V= 16x6.5
V= 104 cm³
r= d/2
r= 12/2
r= 6cm
V= pi x r² xh
V= 3.14x6x6x15
V= 113.04x15
V= 1695.6cm³

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