Răspuns:
TRIUNGHI (echilateral):
L- latura- 3 cm
apotema- formula: [tex]\frac{l\sqrt{3} }{6}[/tex]
aria- formula: [tex]\frac{l^{2}\sqrt{3} }{4}[/tex]
rezolvare:
APOTEMA
[tex]\frac{3\sqrt{3} }{6}[/tex] (se simplifica 3 cu 6)
=> apotema= [tex]\frac{\sqrt{3} }{2}[/tex]
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ARIA
[tex]\frac{3^{2}\sqrt{3} }{4}[/tex]= [tex]\frac{9\sqrt{3} }{4}[/tex]
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PATRAT:
apotema- formula: [tex]\frac{l}{2}[/tex]
arie- formula: [tex]l^{2}[/tex]
rezolvare:
apotema: [tex]\frac{4}{2} = 2[/tex]
aria: [tex]4^{2} = 16[/tex]
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HEXAGON (regulat):
APOTEMA- formula: [tex]\frac{l\sqrt{3} }{2}[/tex]
ARIA- formula: [tex]\frac{3l^{2}\sqrt{3} }{2}[/tex]
rezolvare:
Apotema: [tex]\frac{6\sqrt{3} }{2}[/tex] (se simplifica 6 cu 2) =[tex]3\sqrt{3}[/tex]
Aria: [tex]\frac{3*6^{2}\sqrt{3} }{2}[/tex]=[tex]\frac{108\sqrt{3} }{2}[/tex]= [tex]54\sqrt{3}[/tex]
sper ca te am ajutat=))) bafta la teme
