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A mirror 1m high hangs on a wall. A man stands at distance 2m away from the mirror. The height of the portion of opposite wall in the room that can be seen by the man in the mirror in the mirror without changing the position of his head is (The wall is 4m from the mirror)?

A mirror 1m high hangs on a wall. A man stands at distance 2m away from the mirror. The height of the portion of opposite wall in the room that can be seen by the man in the mirror in the mirror without changing the position of his head is (The wall is 4m from the mirror)?

Grade:12

1 Answers

Pratham Ashish
17 Points
15 years ago

4755-1218_4788_14.bmpfrom the figure  the hieght of back wall

seen by the person = 2x + 2 ( 1-x) + 1

                            = 3 mt.

 

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