Question

Va rog mult dau 5 stele !​

Answer 1

Explicație pas cu pas:

AB = 8 cm

$h = \frac{AB \sqrt{3} }{2} = \frac{8 \sqrt{3} }{2} = \bf 4 \sqrt{3} \: cm$

$Aria = \frac{ {AB}^{2} \sqrt{3} }{4} = \frac{ {8}^{2} \sqrt{3} }{4} = \bf 16 \sqrt{3} \: {cm}^{2}$

Answer 2

$aria = \frac{ {l}^{2} \sqrt{3} }{4} = \frac{ {8}^{2} \sqrt{3} }{4} = \frac{64 \sqrt{3} }{4} = 16 \sqrt{3} \: {cm}^{2}$

$inaltimea = \frac{l \sqrt{3} }{2} = \frac{8 \sqrt{3} }{2} = 4 \sqrt{3} \: cm$