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Ex 10. Îmi trebuie urgent!

Ex 10 Îmi Trebuie Urgent class=

Răspuns :

a) AC = 1/3 AB = 1/3 ×12= 12:3 = 6cm

b) AC = 1/4 ×12= 12:4= 3cm

c) AC = 2/3 ×12= (2×12) :3= 24:3=8cm

d) AC = 5/4×12=(5×12):4=60:4=15cm