Question

determinati lungimea inaltimii unui triunghi echilateral cu latura de:a)4cm b)6\/~3cm c) x cm

Answer 1

$h = \frac{l \sqrt{3} }{2}$

$a)l = 4 \: cm$

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

$b)l = 6 \sqrt{3} \: cm$

$h = \frac{6 \sqrt{3} \times \sqrt{3} }{2} = \frac{6 \sqrt{9} }{2} = \frac{6 \times 3}{2} = 3 \times 3 = 9 \: cm$

$c)l = x \: cm$

$h = \frac{x \sqrt{3} }{2} \: cm$

Answer 2

$h= \frac{l \sqrt{3} }{2}$
a)⇒$\frac{4 \sqrt{3} }{2} =2 \sqrt{3}$
b)⇒$\frac{6.3}{2} =9$
c)⇒$\frac{x \sqrt{3} }{2}$