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a. sudut 90° : ABC, BCD, CDA, DAB, AOB, BOC, COD, AOD
b. sudut 45° : OAB, OBA, OBC, OCB, OCD, ODC, OAD, ODA
b. Sudut BAC , Sudut CAD , Sudut ABD , Sudut CBD , Sudut ACB , Sudut ACD , Sudut CDB , Sudut ADB