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h=2√2cm
R=4√2/3cm
P=πr²
P=(4√2/3)²π
P=3 5/9 π cm²
r=2/3h=2/3*2√2=4√2/3
p=pi*r²=pi*16*2/9=32/9pi
h=(a*√3)/4=√3
r=⅔*h=⅔*√3
Pole = pi*r²=4/3 * pi