Va rog mult dau 5 stele !​

Va Rog Mult Dau 5 Stele class=

Răspuns :

Explicație pas cu pas:

AB = 8 cm

[tex]h = \frac{AB \sqrt{3} }{2} = \frac{8 \sqrt{3} }{2} = \bf 4 \sqrt{3} \: cm \\ [/tex]

[tex]Aria = \frac{ {AB}^{2} \sqrt{3} }{4} = \frac{ {8}^{2} \sqrt{3} }{4} = \bf 16 \sqrt{3} \: {cm}^{2} \\ [/tex]

[tex]aria = \frac{ {l}^{2} \sqrt{3} }{4} = \frac{ {8}^{2} \sqrt{3} }{4} = \frac{64 \sqrt{3} }{4} = 16 \sqrt{3} \: {cm}^{2} [/tex]

[tex]inaltimea = \frac{l \sqrt{3} }{2} = \frac{8 \sqrt{3} }{2} = 4 \sqrt{3} \: cm[/tex]