Kit's Surface Area and Volume Post

 Rectangular Prism

l*w


10*5=50 m²
10*6=60 m²
5*6=30 m²


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


Triangular Prism
l*w = Area of Rectangle
10*5= 50cm²
8*5 = 40 cm²
 9*5 = 45 cm²


b*h = Area of a triangle
  2
9*8
  2
72
 2
36 cm²

TSA = 50+40+45+36+36

TSA = 207 cm²

Cylinder
 2(πr²) + πdh
2(3.14*4²) + 3.14 *8*12


2(50.24) + 301.44


100.48 + 301.44


TSA = 401.92 mm²








This is a fun video, I think. Props to his ukulele. haha


This explains the surface area of the cylinder.



V=b*h  *h
       2


V=5*3  *8.5
       2


V=15  *8.5
      2
V=7.5 *8.5
V=63.75 m³


V= l*w*h
V=20*8*16
V=2560 cm³


V=b*h  *h
       2

V=8*4  *6.5
       2

V=32  *6.5
       2

V= 16*6.5
V=104 cm³


V=104/8
V= 13*3
V=39 cm³






πr² * h 
V=3.14*6²*15
V=113.04*15
V=1695.6 cm³