Jawaban:
1. V=3,14×r²×t
=3,14×5×5×20
=31,4×5×5×2
=2070cm³
2. V=22/7×7×7×20
=22×7×20
=3080cm³
3. V=22/7×21×21×25
=22×2×21×25
=23100cm³
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Jawaban:
1. V=3,14×r²×t
=3,14×5×5×20
=31,4×5×5×2
=2070cm³
2. V=22/7×7×7×20
=22×7×20
=3080cm³
3. V=22/7×21×21×25
=22×2×21×25
=23100cm³