Ryan's Surface Area Post

Triangular Prism


first you need to find the numbers you need for the formula bxh/2



two triangles
bxh/2
5x7=35/2=17.5
5x7=35/2=17.5

Next is lxw



4x6=24
4x6=24
4x6=24

TSA:17.5+17.5+24+24+24=107

Rectangular Prism


lxw
4x4=16
4x4=16
4x4=16

TSA:16+16+16=48

Volume

Cylinder Volume and Volume Problems 7.3

r= d/2
r= 8m/2
r= 4m
v= r.r.π.h
v= 4m x 4m x 3.14 x 10
v= 502.4m^3

v= 502.4m3 / 2 = 252.2m3
v= 7.4

v= l.w.h

v=10cm x 16cm x 10cm

v= 1600cm3
v=l.w.h

v=5cm x 6cm x 10cmv=300cm3
v= 1600cm3 - 300cm3 = 1 300cm3