February 22, 2017

Homework Help: maths

Posted by black_widow on Saturday, March 23, 2013 at 12:00am.

Let the bottom edge of a rectangular mirror on a vertical wall be parallel to and h feet above the level floor. If a person with eyes t feet above the floor is standing direct at a distance d feet from the mirror, what is the relationship among h,d and t if the person can just see his own feet in the mirror?
Choose one answer.

a. t=4d and h does not matter.

b. h^2 + d^2 = (t^2)/4

c. t - h = d

d. (t - h) = 4d

e. t=2h and d does not matter.

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