Question

O față a unui tetraedru regulat are aria de 36 radical 3 cm ². Aflați lungimea unei muchii a unui tetraedru considerat.​​

Answer 1

$\frac{ {l}^{2} \sqrt{3} }{4} = 36 \sqrt{3}$

${l}^{2} \sqrt{3} = 4 \times 36 \ \sqrt{3} \\ {l}^{2} = 4 \times 36 \\ {l}^{2} = 144 \\ l = 12$

=>Muchia=12cm