Asked by Anonymous
how to find how many ridges a 10 p coin has?
What do we measure and how do we work it out?
What do we measure and how do we work it out?
Answers
Answered by
Steve
this is physics?
measure the circumference C of the coin
measure the distance D between two ridges
number of ridges = C/D
For example, if the coin is 5 cm around, and each ridge occupies 1 mm (.1 cm), then there are 5/.1 = 50 ridges.
measure the circumference C of the coin
measure the distance D between two ridges
number of ridges = C/D
For example, if the coin is 5 cm around, and each ridge occupies 1 mm (.1 cm), then there are 5/.1 = 50 ridges.
Answered by
Zahid
You need to add one as there is one extra ridge compared to the number of spacings between ridges
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