You are standing 50 cm from a wall (behind you). Twenty centimeters in front of you,...

 

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You are standing 50 cm from a wall (behind you). Twenty centimeters in front of you, you hold a small 4 cm-tall mirror vertically. How much vertically of the wall behind you can you see in the mirror (except of course where you are blocking the view of the wall)? Draw the Looking Glass View diagram before you try to calculate it! You are standing 50 cm from a wall (behind you). Twenty centimeters in front of you, you hold a small 4 cm-tall mirror vertically. How much vertically of the wall behind you can you see in the mirror (except of course where you are blocking the view of the wall)? Draw the Looking Glass View diagram before you try to calculate it!