



 
HI Jason, There are 2.54 centimeters in an inch which is approximately two and a half centimeters in an inch. Four times two and a half is ten and hence there are approximately ten centimeters in 4 inches. That's what I use approximately convert inches to centimeters \[4 \mbox{ inches } \approx 10 \mbox{ centimeters.}\] Penny  


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