Question

afla in fiecare caz perimetrulunui dreptunghi folosind orice metoda. a)l=4m,L=8m b)l=6cm,L=9cm c)l=5mm,L=10mm

Answer 1

p=2(l+L) a)2(4+8)=2×12=24 p=24;;;b) 2(6+9)=2×15=30 p=30;;;c)) 2(5+10)=2×15=30 p=30

Answer 2

A). P=2L+2l=2×8 m+2×4 m=16 m+8 m=24 m. B). P=2L+2l=2×9 cm+2×6 cm=18 cm+12 cm=30 cm. C). P=2L+2l=2×10 mm+2×5 mm=20 mm+10 mm=30 mm.