Odpowiedź:
zad.1
a)Obw = 8*4=32
[tex](4\sqrt{3}) ^{2} +x^{2} =8^{2} \\48+x^{2} =64\\x^{2} =16\\x=4[/tex]
P=[tex]8*4\sqrt{3} =32\sqrt{3}[/tex]
b)Obw=25*2+4*15=110
P=[tex]\frac{(45+15)*20}{2} =600[/tex]
zad.2
a)
[tex]6^{2}+7^{2} =x^{2} \\36+49=x^{2} \\x^{2} =85\\x=\sqrt{85}[/tex]
b)
[tex]6^{2} +y^{2} =(6\sqrt{5} )^{2} \\36+y^{2} =180\\y^{2} =144\\y=12[/tex]
c)
[tex]9^{2} +z^{2} =10^{2} \\81+z^{2} =100\\z^{2} =19\\z=\sqrt{19}[/tex]
