A' cur-ris ceàrnan ann an triantan, nì iad 180°, 360° ann an ceart-cheàrnaich. Lorgar ceàrnan ann an leth-chearcaill is cearcaill. Cruthaichidh loidhneachan co-shìnte ceàrnan co-fhreagarrach/mu-seach.
Part ofMatamataigGeoimeatraidh
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