Question

The angle of elevation of top of a minor and angle of depression of foot of mine at top of 7m high building are 60 and 30 degree respectively. find the height of minar​

Answer 1

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Answer 2

Height of Minar = 28 m if The angle of elevation of top of a minor and angle of depression of foot of minar at top of 7m high building are 60 and 30 degree respectively

Step-by-step explanation:

Let say Horizontal distance between Minar & Buidling = B

Let say Height of Minar  = H

Height of Minar above building = H - 7 m

Height of minar below building = 7 m

angle of depression of foot of minar at top of 7m high building  = 30°

=> Tan 30° = 7/B

=> 1/√3  = 7/B

=> B = 7√3  m

angle of  elevation of top  of minar at top of 7m high building  = 60°

=> Tan 60° = (H - 7)/B

=> √3  = (H -7)/B

=> H - 7 = B√3

=> H - 7 = 7√3 √3

=> H - 7 = 21

=> H = 28 m

Height of Minar = 28 m

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