[tex]8\sqrt{3} = a\sqrt{3}[/tex]13. a
Z pitagorasa
[tex]10^{2} + 16^{2} = c^{2}[/tex]
100 + 256 =356
c = [tex]\sqrt{356}[/tex]
b) [tex]15^{2} - 5^{2} = b^{2}[/tex]
225- 25 = 200
b = [tex]\sqrt{200}[/tex]
14. [tex]24^{2} - 12^{2} = a^{2}[/tex]
576- 144 = 432
a = [tex]\sqrt{432}[/tex]
P = 12· [tex]\sqrt{434}[/tex] ·[tex]\frac{1}{2}[/tex] = [tex]6\sqrt{432}[/tex]
Obw = 12+ 24 + [tex]\sqrt{432}[/tex] = 36 + [tex]\sqrt{432}[/tex]
15. h = [tex]4\sqrt{3}[/tex]
h = [tex]\frac{a\sqrt{3} }{2}[/tex]
[tex]4\sqrt{3}[/tex] = [tex]\frac{a\sqrt{3} }{2}[/tex] / 2
8 = a
Obw = 8*3 = 24
P = [tex]\frac{a^{2}\sqrt{3} }{4}[/tex]
P = [tex]16\sqrt{3}[/tex]
