Jim's surface area growing post

Length is 5cm
Width is 3 cm
Height is 4cm




Bottom and Side Side and Side Top and Bottom
W x H H x L W x L
3x4=12 5x4=20 3x5=15
12+12=24cm 20+20=40 15+15=30cm


TSA= 24+40+30=94 cm2




Base is 7cm
Height is 8cm
Width is 10cm





A=BxH A=LxW
A=7cm x 8cm= A=8x10
A=56cm2 A=80cm+80cm+80cm=240cm
A=56+56
A=112cm2 A=112+240=352cm2




D=12cm
L=16cm






R=D/2 A=pi x r x r C= pi x d A= LxW
R=12/2 A=113.04+113.04= C= 3.14x12x12 A=37.68x16=
R=6cm A=266.08cm2 C= 37.68cm2 A= 602.88cm2

TSA=266.08cm2+602.88cm2=868.96cm2