Question

Aria unui triunghi echilateral cu latura de 2 radical 3 cm. este egala cu ? cm patrati .

Answer 1

[tex]Aria~triunghiului~echilateral~este~data~de~formula:\\ \frac{ \sqrt{3} }{4} l^2unde~l=lungimea~latura~triunghiului.\\\\ Vine~asa: \frac{ \sqrt{3} }{4} * \sqrt[2]{3} ^2\\\\ =\ \textgreater \ Aria= \frac{ \sqrt{3} }{4} * \frac{12}{4} \\\\ =\ \textgreater \ Aria= \frac{1,73}{4} * \frac{12}{4} \\\\ =\ \textgreater \ Aria= \frac{5,19}{4} \\\\ =\ \textgreater \ Aria=1,29cm^2\\\\ (nu~stiu~sigur~daca~este~bine~dar~sper~ca~te-am~ajutat,cat~de~cat...)[/tex]