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p= 18 pi
v= 1/3 *p * h
v= 1/3*18pi*6
v=36 pi
v = ⅓ π(3√2)² × 6
v = ⅓ π 9×2 × 6
v = ⅓ π 18 ×6
v = ⅓ π 108
v = 108/3 π
v = 36π
Odp : objetosc wynosi 36π
r=3pierw z 2
h=6
szukane:
V=?
V= 1/3 *pi *r2 *h
V=1/3 *pi *18 *6
V=36 pi [j3]
odp: objętość stożka jest równa 36 pi[ j3]