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Question Number 69851 by necxxx last updated on 28/Sep/19

A c o n v e x m i r r o r o f r a d i u s o f c u r v a t u r e

30 c m f o r m s a r e a l i m a g e 20 c m f r o m i t s

s u r f a c e . F i n d w h e t h e r t h e i m a v e c t i s

e r e c t o r i n v e r t e d . P l e a s e e x p l a i n h o w

p o s s i b l e t h i s i s .

T h a n k s i n a d v a n c e .