Given
MK = 30
NL = 13
Procedure
Let's calculate the base of the triangle formed in MNL
NL = 13
MN = 15
![\begin{gathered} ML=\sqrt[]{NL^2+MN^2} \\ ML=\sqrt[]{13^2+15^2} \\ ML=19.85 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/7jdwr648kvkuoquiixwo6iuxtutbw6vrjd.png)
Now,
NK = MK/2
NK = 30/2
NK = 15
KL = ML
KL = 19.85
First, we are gonna calculate corner angles
corner angle M = K = 81.82
corner angle J = L = 98.17