Modfeddi
Ers 1959, mae modfedd wedi'i diffinio a'i derbyn yn rhyngwladol yn gyfwerth â 25.4mm (milimetr).
Lawrlwythwch ein App AndroidSylwer: Mae canlyniadau ffracsiynol wedi'u talgrynu i'r 1/64 agosaf. I gael ateb mwy cywir dewiswch 'degol' o'r opsiynau uwchben y canlyniad.
Sylwer: Gallwch gynyddu neu ostwng cywirdeb yr ateb hwn drwy ddewis nifer y ffigurau ystyrlon sydd eu hangen o'r opsiynau uwchben y canlyniad.
Sylwer: I gael canlyniad degol pur dewisiwch 'degol' o'r opsiynau uwchben y canlyniad.
Ers 1959, mae modfedd wedi'i diffinio a'i derbyn yn rhyngwladol yn gyfwerth â 25.4mm (milimetr).
Uned o hyd sy'n gyfwerth â 1760 llath
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