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The angles of depression of the …

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The angles of depression of the top and bottom of a 8m tall building from the top of a multi storied building are 30° and 45°, respectively. Find the height of the multi storied building and the distance between the two buildings.
  • 2 answers

Gaurav Seth 4 years, 10 months ago

Let AB and CD be the multi-storeyed building and the building respectively.

 Let  the height of the multi-storeyed building= h m and 

the distance between the two buildings = x m.

 AE = CD = 8 m  [Given]

BE = AB – AE = (h – 8) m 

and 

AC = DE = x m  [Given]

 Also,

 ∠FBD = ∠BDE = 30° (Corresponding angles)

∠FBC = ∠BCA = 45° (Corresponding angles)

 Now,

 In Δ ACB,

 In Δ BDE,

From (i) and (ii), we get,

 

Distance between the two building 

 

King Adithya H M... 4 years, 10 months ago

The angles of depression of the top and bottom of an 8m tall building from the top and bottom of a multistoreyed building are 30 and 45 degrees respectively. The angles of depression of the top and bottom of an 8m tall building from the top and bottom of a multistoreyed building are 30 and 45 degrees respectively.
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