Question

Calculati perimetrul unui paralelogram MNPQ stiind ca MN=4dm si MQ=32cm

Answer 1

Răspuns:

$P_{MNPQ}=144\text{cm}$

Explicație pas cu pas:

Convertim decimetri în centimetri:

$4\text{dm}=4\cdot10\text{cm}\Rightarrow4\text{dm}=40\text{cm}$

Aflăm perimetrul paralelogramului:

$MN=40\text{cm}\\MQ=32\text{cm}\\P_{MNPQ}=MN+NP+PQ+QM.\\MNPQ\text{ paralelogram}\Rightarrow MN\equiv PQ; MQ\equiv NP\\\Rightarrow P_{MNPQ}=2MN+2MQ=2\cdot40+2\cdot32=80+64\\\Rightarrow P_{MNPQ}=144\text{cm}.$