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BITSAT2010MathematicsApplication of DerivativesActual

If a flagstaff of 6 metres high placed on the top of a tower throws a shadow of (2 3 ) metres along the ground, then the angle (in degrees) that the sun makes with the ground is

Options

  1. A(60^ )
  2. B(80^ )
  3. C(75^ )
  4. DNone of these

Correct answer

A. (60^ )

Step-by-step solution

Accordingly, ( = h x = h+6 x+2 3 = 6 2 3 =60^ ) [Since the triangles (A E C ) and (B D C ) are similar] (h =(h-100) ) ( h= 100 - )

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