Question

me ajudem a resolver essa pergunta aqui

Answer 1

Resposta:

sen 60=h/2

(√3/2)*2=h

h=√3

cos60=BD/2 ==>BD=2*(1/2)=1

tan 45=h/DC ==> DC=√3/1=r3

BC=BD+DC=(1+√3)m

Letra C