Odpowiedź:
P=1/2ah
[tex]h = a \sqrt{3} \div 2[/tex]
[tex] \sqrt{3} = \frac{1}{2} \times a \times a\sqrt{3} \div 2[/tex]
[tex] \sqrt{3} = {a}^{2} \sqrt{3} \div 4[/tex]
[tex]4 \sqrt{3} = {a}^{2} \sqrt{3} [/tex]
[tex]4 = {a}^{2} [/tex]
[tex]a = 2[/tex]
obw=3*2=6 B
[tex]h = \sqrt{3} [/tex]
D
