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In the figure, ABC is a right triangle in whuch AB-8 m, <BCA -30• ,then find

fu) the angle of depression of Cat A.

the angle of elevation of A at C.

(in) BC and AB

 

Answers (1)

(i) From the diagram, it is clear that the angle of elevation of A with respect to C is 30? where BC becomes the horizontal.

(ii) DC is a vertical line drawn from A so that we get a reference line from which we can measure the depression angle.

As AD and BC are both vertical lines therefore they are parallel.

Now ∠ACB = ∠CAD as they are alternate angles along two parallel lines

therefore, ∠ CAD = 60?

Now, from the diagram drawn before we can easily say that The angle of depression of C at A is 60? 

Posted by

Satyajeet Kumar

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