Question

The height of the hill The three heads of a horizontal triangle of the crest of a hill. And the angle of elevation from C is a. The height of the hill is:​

Answer 1

R  =  a /2 sin A  =  b /2 sin B  =  c /2 sin C

 

tan  α  =  h /R

tan a R  =  h

h  =  tan α  a /2 sin A

h  =  1 /2 tan α cosh α A

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Answer 2

R  =  a /2 sin A  =  b /2 sin B  =  c /2 sin C

tan  α  =  h /R  

tan a R  =  h

h  =  tan α  a /2 sin A

h  =  1 /2 tan α cosh α A

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