1.Calculati perimetrul unui triunghi oarecare (in cm),cu lungimile laturilor de 12 cm, 0,9 dm, 80 mm
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0,9 dm = 9 cm
80 mm = 8 cm
P= 12 + 9 + 8 = 29 cm
Răspuns:
12 cm=12 cm
0,9 dm=9 cm
80 mm= 8 cm
12+9+8=29 (P triunghi)