Question 150941
{{{drawing( 300, 300, -2, 5, -2, 5,locate(1,1.5,A),locate(2,2.7,c),locate(4.2,2.2,b),locate(2.2,0.8,a),line(0,1,4,1),line(4,1,4,3),line(4,3,0,1))}}}
From the diagram,
{{{sin(A)=b/c}}}
{{{b=c*sin(A)}}}
{{{cos(A)=a/c}}}
{{{a=c*cos(A)}}}
Change A from degress, minutes, and seconds to decimal degrees.
{{{A=30+25/60+30/3600=30+0.416667+0.008333=30.425}}}
{{{b=c*sin(A)}}}
{{{b=10*sin(30.425)}}}
{{{b=10*0.50641}}}
{{{highlight(b=5.064)}}}
{{{a=c*cos(A)}}}
{{{a=10*cos(30.425)}}}
{{{a=10*0.86629}}}
{{{highlight(a=8.663)}}}