Asked by black_widow
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.
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.
Answers
Answered by
Steve
(e)
The bottom of the mirror must be halfway up t, so the angles to and from the mirror are equal
The bottom of the mirror must be halfway up t, so the angles to and from the mirror are equal
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