Dr. black is standing 13 feet from a street lamp. the lamp is making his shadow 9 feet long. he estimates that the angle of elevation from the tip of his shadow to the top of the street lamp is 50 degrees. to the nearest door, the street lamp is about

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

step-by-step explanation:

given   that triangle lno is congruent to triangle lnm.

we have to fill up the blanks in the given question.

according to above order of congruency   kept in mind we can say that

∠lno ≅ ∠lnm

∠oln ≅ ∠mln

ln ≅ ln due to common in both.

hence, by sas congruency,

the side angle side rule   states that if two sides and the included angle of one triangle are congruent to another triangle, then these two triangles are congruent.

the answer is y = 11.54

hope this : )