Question

Fie triunghiul ABC dreptunghic in B.Stiind ca m(/C)=30rade,aflati:
a)AB,daca AC=16cm;
b)AC,daca AB=6cm.

Answer 1

A
sin30=ab/ac
sin30-1/2
1/2=ab/16
ab=16/2=8
B
sin30=ab/ac
1/2=6/ac
ac=6/2=3
sinus de 30 grade