Question

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

Answer 1

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