LxW                    TSA=2x(T+F+S)
                                         =2x(50+60+30)
T - 10x5 = 50m²               =2x140
F - 10x6 = 60m²               =280m²
S -   5x6 = 30m² 
Triangular Prism 
    LxW                                            BxH                                   TSA
       = Area of the Rectangle                = Area of the Triangle                 = 50+40+45+36+36
    10x5 = 50cm²                                     (9x8)÷2                                   =207cm²
      8x5 = 40cm²                                 = 72÷2
      9x5 = 45cm²                                 =36cm²
Cylinder
Rectangle-                                              Circle-                              TSA - Rectangle+(circle x 2)
              = π.D=W                                          =π.r²                                = 301.44+(50.24 x 2)
              = 3.14x8                                           =3.14x(4x4)                     =401.92mm² 
              = 25.12 mm²                                     =50.24mm²
              = WxL=Circumference    
              = 25.12x12
              = 301.44 mm²
 Volume
 Triangular Prism

V=(BxH)÷2xH
   =(3x5)÷2xH
   =(15÷2)xH
   =7.5m²x8.5m
   =62.75m3
Rectangular Prism

V=AOBxH
  =LxWxH
  =20cmx8cm
  =160cm²x16cm
  =2560cm3
Triangular Prism 3/8 full

V=(BxH)÷2xH÷8x3
   =(8x4)÷2xH÷8x3
   =(32÷2)xH÷8x3
   =(16x6.5)÷8x3
   =(104÷8)x3
   =13x3
   =39cm3
Cylinder

V=πxR²xH
   =(3.14x6x6)x15
   =113.04cm²x15cm
   =1695.6cm3
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