Question

cum aflăm latura triunghiul echilateral daca stim aria​

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

$\it \mathcal{A}=\dfrac{\ell^2\sqrt3}{4} \Big|_{\cdot4}\Rightarrow 4\cdot \mathcal{A}=\ell^2\sqrt3\Big|_{\cdot\sqrt3} \Rightarrow 4\sqrt3\cdot\mathcal{A}=\ell^2\cdot3|_{:3} \Rightarrow \dfrac{4\sqrt3\cdot\mathcal{A}}{3}=\ell^2$