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Rezolvati triunghiul dreptunghic ABC m(A)=90 GRADE.Daca m(b)=60grade si AC=1 cm

Răspuns :

m(ACB)=30 grade
ceea ce inseamna ca AB=BC/2
AC²+AB²=BC²⇒AC²+[tex] \frac{BC {2} }{4} [/tex] = BC²
BC²-[tex] \frac{BC {2} }{4} [/tex]=1
3BC²/4=1⇒3BC²=4⇒BC²=3/4⇒BC=[tex] \frac{\sqrt{3} }{2}[/tex]cm