Find the length of BC, to two decimal places. Hello Guest! Sine law \ (\frac {8} {sin (180°-43°-61°)}=\frac {\overline {BC}} {sin (61°)}\) \ (\overline {BC}=\frac {8\cdot sin (61°)} {sin
BC^2=3^2+4^2 =9+16 =25 BC=5 cm its at the back of my book You see my calculation The other person has also done the same thing. You asked the length of BC Since BC is the hypotenuse, I've applied Pythagoras theorem.