Question

What is the measure of angle J in the triangle below? *Hint: Law of Sines*

Answer 1

SOLUTION:

Using the sine rules;

The equations developed;

$\frac{15}{sin102}=\frac{12}{sinJ}$

Making sinJ the subject;

$\begin{gathered} sinJ=\frac{12sin102}{15} \\ sinJ=0.7825 \\ J=51.49^o \end{gathered}$

Thus, the angle is 51.5 degrees.