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Diameternya 36 cm.
r/jari -jari = 36 ÷ 2 = 18
V = phi × r × r × t
= 22/7 × 18 × 18 × 52,5 = 53.460
maka jawabannya adalah b. 53.460 cm³.
maaf ya kalo salah :) aku yakin bener :))
22/7×18×18×52,5=
22×18×18 : 7=1.018,2857143 ×52,5 cm =53.460,000001
=B. 53.460
maaf klo slh...........