Question

Va rog, ajutor la problema de clasa a 6-a .multumesc​

Answer 1

6. P=3×l=3×4=12 cm

7. tr. BCD-echilat=> DCB=DCM=60°

AMC=DCM=>AMC=60°

M-mij BC=> AM-mediana=> AM=2BC=> AM=MC=MB =>

=>tr. CAM-echilat => CAM=60°

MAB=CAB-CAM=90°-60°=30°

tr. AMB-isoscel, AM=MB=> ABC=30°