Question

Va roog e urgent! In triunghiul ABC se cunosc m(<A)=90grade, AB=6 cm si AC=3 cm. Aflati sin C.

Answer 1

ΔABC, mas<A=90  ⇒BC²=AB²+AC²=6²+3²=36+9=45  ⇒BC=3√5
sin<C=AB/BC= 6/3√5= 2/√5  rationalizam si ne da 2√5/5