KnowraGradianLinked fromLinked fromThe 3 pages that link to Gradian, each with the reason it gives.All 3Compared with 3RadianCompared with: It offers a decimal subdivision of right angles rather than the radian’s natural circle ratio.MilliradianCompared with: It divides a full turn into 400 units rather than using the radian scale.Minute and second of arcCompared with: Its decimal division of a turn differs from the base-sixty arc subdivisions.