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88
One inch
150 grooves
a quarter has 130 grooves.
twelve
One.
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ONE continuous groove! An interesting side note, as an advertising gimmick in the 60's, a record was produced with two sets of grooves. The placement of the needle at the beginning of the record determined the content of the Play.
88
Not too much of a count. As with any record, there is only one CONTINUOUS groove on one side of a record. Since there are 2 sides to a record the answer is 2 GROOVES, 1 groove for each side.
twelve
There were thirty-three grooves on one side of a standard 78 rpm record The seventy-eight rpm records were released in the early 1800s and were very popular at that time.
One inch
113.04 if the diameter is twelve inches
One fat quarter yields twelve 5 inch squares
One foot is twelve times longer than one inch.