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Perimetre ale unor figuri geometrice

Perimetre ale unor figuri geometrice. Triunghi. A. B. C. P=AB+BC+AC. Dreptunghi. L. D C. l. l. A B. L. P=2(L+l) p=P/2. Patrat. D l C. l. l. A l B. P=4l. Romb.

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Perimetre ale unor figuri geometrice

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  1. Perimetre ale unor figuri geometrice

  2. Triunghi A B C P=AB+BC+AC

  3. Dreptunghi L D C l l A B L P=2(L+l) p=P/2

  4. Patrat D l C l l A l B P=4l

  5. Romb A l l D B l l C P=4l

  6. Paralelogram L l l L P=2(L+l)

  7. Trapez D C A B P=AB+BC+CD+DA

  8. JOC • Gasiti cuvintele: • Romb • Patrat • Trapez • Triunghi

  9. Probleme • P =10,8m  l=? a)2,7m b)5,4m c)2,1m 2. L=2l l=2,5cm  P =? a)7,5cm b)5cm c)15cm 3. AB=9mm; BC=5,3mm; AC=0,07dm  P =? a)21,3mm b)2130dm c)14,37cm Sonia Nitulescu, clasa a 5-a C, Sc. “Liviu Rebreanu” Mioveni, Arges

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