A man 2m 50cm tall stands a distance of 3m in front of a large vertical plane mirror. i)what is the shortest length of the mirror that will enable the man see himself fully? ii)what is the answer of the above if the man were 5m away?


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Question Number 38235 by NECx last updated on 23/Jun/18

$A m a n 2 m 50 c m t a l l s t a n d s a$ $d i s t a n c e o f 3 m i n f r o n t o f a l a r g e$ $v e r t i c a l p l a n e m i r r o r .$ $i) w h a t i s t h e s h o r t e s t l e n g t h o f t h e$ $m i r r o r t h a t w i l l e n a b l e t h e m a n s e e$ $h i m s e l f f u l l y ?$ $i i) w h a t i s t h e a n s w e r o f t h e a b o v e$ $i f t h e m a n w e r e 5 m a w a y ?$
Commented by MrW3 last updated on 23/Jun/18

$t h e s h o r t e s l e n g t h o f m i r r o r s o t h a t$ $t h e m a n c a n s e e h i m s e l f f u l l y i s$ $h a l f o f t h e l e n g t h o f t h e m a n, n o$ $m a t t e r h o w f a r a w a y h e s t a n d s f r o m$ $t h e m i r r o r .$
Commented by NECx last updated on 23/Jun/18

$p l e a s e g i v e a d i a g r a m m a t i c$ $r e p r e s e n t a t i o n i f p o s s i b l e .$ $T h a n k s i n a d v a n c e .$
Commented by MrW3 last updated on 23/Jun/18

Commented by NECx last updated on 23/Jun/18

$T h a n k y o u s o m u c h . T h e d i a g r a m$ $b e s t e x p l a i n s i t .$
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