Question

M angle IJK = 57 degrees and m angle IJL = 20°. Find m angle LJK.

Answer 1

From the diagram given, it can be seen that

$m\angle IJK=m\angle IJL+m\angle LJK$

The question gives us

mm

Therefore, we can find m

Hence

$\begin{gathered} 57=20+m\angle LJK \\ m\angle LJK=57-20 \\ m\angle LJK=37^{\circ} \end{gathered}$

Thus, m 37°.