Coordinate Geometry · NDA previous year questions

2010 27 questions

1. Q1172010 · 18 Apr 2010

   What is the angle between one of the edges of the cube and the diagonal of the cube intersecting the edge of the cube?

   1. A.${\cos }^{-1}(1/2)$
   2. B.${\cos }^{-1}(1/3)$
   3. C.${\cos }^{-1}(1/\sqrt{3})$
   4. D.${\cos }^{-1}(2/\sqrt{3})$
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   Answer: C

2. Q1182010 · 18 Apr 2010

   What is the angle between the diagonal of one of the faces of the cube and the diagonal of the cube intersecting the diagonal of the face of the cube?

   1. A.${\cos }^{-1}(1/\sqrt{3})$
   2. B.${\cos }^{-1}(2/\sqrt{3})$
   3. C.${\cos }^{-1}(\sqrt{2/3})$
   4. D.${\cos }^{-1}(\sqrt{2}/3)$
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   Answer: C