In ΔABC, m∠ABC = 40°, BL is the angle bisector of ∠B with point L∈AC . Point M ∈ AB so that LM ⊥ AB and N ∈ BC so that LN ⊥ BCFind the angles of △MNL

In ΔABC, m∠ABC = 40°, 

BL

 is the angle bisector of ∠B with point L∈

AC

 . Point M ∈ 

AB

 so that 

LM

 ⊥ 

AB

  and N ∈ 

BC

  so that 

LN

  ⊥ 

BC

Find the angles of △MNL