A man places a mirror on the ground and sees the reflection of the top of a building, as shown. Find the height of the building.

Question

anonymous · Answer

attachment

a_clan · Answer

this problem can easily be solved if both the triangles are similar. In that case, 5 h -- = --- 6 50 However, in order to apply this formula, it is mandatory to first prove that both triangles are similar. This requires a basic knowledge of mirror reflection in Physics. Check the attachment

asadkarim7 · Answer

take ratio of both sided 
5: 6 = x : 50 
6x = 50x 5 
x = 41.6 ft

a_clan · Answer

5        6
-- = ---
h        50

anonymous · Answer

Yes, as pointed out by a_clan, we can use properties of similar triangles

in similar triangles, correscponding sides of the two triangles are in the same ratio/proportion

so    h      =       50
     ----         ------
         5              6

                    50 x 5
hence h = --------
                        6

anonymous · Answer

answer is 41.66

asadkarim7 · Answer

yes my answer is same !

anonymous · Answer

oif u r rounding off then it is 41.67

anonymous · Answer

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