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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
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