Răspunsuri

2014-06-05T19:43:14+03:00
A.)h= \frac{a \sqrt{3} }{2}
2 \sqrt{3} = \frac{a \sqrt{3} }{2} (amplifici pe prima cu 2)
 \frac{4 \sqrt{3} }{2} = \frac{a \sqrt{3} }{4} ·4
4 \sqrt{3} =a \sqrt{3} ⇒a=4

b.) ap= \frac{1}{3} ·h
        = \frac{1}{3} ·2 \sqrt{3}
        = \frac{2 \sqrt{3} }{3}

c.)R= \frac{h}{2} = \frac{2 \sqrt{3} }{2} = \sqrt{3}