Question

afla perimetru si aria unui patrat cu latura de 800 m

Answer 1

[tex]Aria=l^2\\ Perimetru=4l\\ -------\\ =\ \textgreater \ Aria=800*800=640.000m\\ ~~~~~Perimetrul=800*4=3.200m\\\\ Cu~placere![/tex]

Answer 2

P patrat=4l
P patrat=4·800m=3200m[perimetrul patratului];
A patrat=l²
A patrat=800²m²=640000m²=64hm²=64ha[aria patratului];