Natasha's Surface Area post

Rectangular Prism



lxw
T= 10x5=50
F=6x10=60
S=5x6=30

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


Triangle Prism

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


bxh÷2 bxh÷2
8x9÷2 8x9÷2
=72÷2 = 72÷2
=36cm<sup>2 =36cm2
TSA= 40+45+50+36+36
=207cm2

Cylinder Prism


πd
=3.14x8
=25.12
lxw
25.12x12
=301.44mm2

πr2
=3.14x4x4
=50.24mm2
πr2
=3.14x4x4
=50.24mm2
TSA= circle+circle+rectangle
TSA=50.24+50.24+301.44
TSA=401.92mm2</sup>