Given that QV > DV, SV = DV, and UV < DV,

Mathematics
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Given that QV > DV, SV = DV, and UV < DV, which point on the mirror should you point the camera in order to videotape the door?

a.  T

b.  R

c.  P

d.  V

May 6th, 2015

Since SV = DV, the points S and D are symmetric with respect to the mirror, so the camera must be directed to the point R (S lies on the extension of the CR, and the ray CS is reflected by the mirror at the point R and then passes through the point D.

Answer: b) (point R).

May 6th, 2015

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