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1,2,3 vreau urgenttt!!!

123 Vreau Urgenttt class=

Răspuns :

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Vezi imaginea DELDELIA13

1. A = b*h

b-baza

h-inaltimea

2. A = (B+b)*h/2

B-baza mare

b-baza mica

h-inaltimea

3. L = 3cm

l = 4cm

A = L*l = 3*4 = 12 cm²