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Anonymous
1cm = 1/2.54in
8cm = 8 ÷ 2.54 in
~= 3.15in
Wiki User
8cm is about 3 inches
1in = 2.54cm 8cm x 1in/2.54cm = 3.15in (rounded)
80mm equals 8cm
8cm x 1in/2.54cm = 3.15in
128pi.