Jawabanmu

2014-09-10T17:37:44+07:00
Vk = 1/3 π r² t
264 = 1/3 × 22/7 × r² × 7
264 = 22/3 r²
r² = 264 ÷ 22/3
r² = 264 × 3/22
r² =  \sqrt{36}
r = 6 cm