Question

Volume kerucut 960 cm kubik..tinggi kerucut 10 cm..tentukan lah keliling alas nya

Answer 1

V = 1/3πr^2t
960 = 1/3 . π . r^2 . 10
960/30 = πr^2
32 = πr^2
32 . 7/22 = r^2
10, 18 = r^2
3, 19 cm = r

k = 2πr
k = 2 . 3, 14 . 3, 19
k = 20, 0332 cm^2

maaf kalau salah ._.