sebuah kerucut setinggi 30 cm memiliki keliling alas 66 cm. Volume kerucut tersebut adalah.... pleaseee,,, 1 lagi yaaa.. ;)

k alas = phi d
66 = 22/7 d
66 x 7/22 = d
21 = d

r = 1/2 d
= 10.5 cm

s =akar r kuadrat + t kuadrat
= akar 10,5 kuadrat + 30 kuadrat
= akar 110,25 + 900
= akar 1010,25
= 31,7 cm

v = phi r kuadrat + phi r s
= 22/7 x 10.5 x 10.5 + 22/7 x 10.5 x 31.7
= 346.5 + 1046.1
= 1392.6 cm kubik

jadikan jawaban terbaik yaa:)

k alas = phi d
66 = 22/7 d
66 x 7/22 = d
21 = d

r = 1/2 d
= 10.5 cm

s =akar r kuadrat + t kuadrat
= akar 10,5 kuadrat + 30 kuadrat
= akar 110,25 + 900
= akar 1010,25
= 31,7 cm

v = phi r kuadrat + phi r s
= 22/7 x 10.5 x 10.5 + 22/7 x 10.5 x 31.7 
= 346.5 + 1046.1
= 1392.6 cm kubk