Răspuns :
Paralelogramul are laturile opuse congruente, deci
[tex]P_{ABCD}=2\cdot AB+2\cdot AD=2\cdot16+2\cdot10=52\ cm.[/tex]
[tex]P_{ABCD}=2\cdot AB+2\cdot AD=2\cdot16+2\cdot10=52\ cm.[/tex]