Pages

Subscribe:

Ads 468x60px

Creative Commons License

Clustr Map

Search This Blog

Friday, March 9, 2012

Diana's Surface Area and Volume Post

Rectangular Prism




l x w, l x w, l x w
t 5 x 10 = 50m2 f 10 x 6 = 60m2 s 5 x 6 = 30m2

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

Triangular Prism


135cm2 + 36cm2 + 36cm2 =207cm2
l x w
27 x 5= 135cm2 (b x h) ÷ 2 TSA=207cm2
(8 x 9) ÷ 2
72
÷ 2= 36cm2




Cylinder





2(π r2) + πdh r = d ÷ 2
r = 8
÷ 2
r = 4 mm
2 (3.14 x 4 x 4) + 3.14 x 8 x 12
2 (50.24) + 301.44
100.48 + 301.44
TSA= 401.92mm2



v= (b x h ÷ 2) x h
v= ( 3 x 5
÷ 2) x 8.5
v= (15
÷ 2) x 8.5
v=7.5 m2 x 8.5
v= 63.75m3

v=(l x w) x h
v=( 20 x 8) x 16
v= 160cm2 x 16
v=2560cm3

v=(b x h ÷ 2) x h
v=(4 x 8 ÷ 2) x 6.5
v=(32 ÷ 2) x 6.5
v= 16 x 6. 5
v= 104cm3
3/4 = 0.375
0.375 x 104= 39cm3


v=(π r2) x h
v=(3.14 x 6 x 6) x 15
v=113.04cm2 x 15
v= 1695.6cm3

0 comments:

Post a Comment