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Question Number 37073 by ajfour last updated on 08/Jun/18

Commented by ajfour last updated on 08/Jun/18

$I f a r a y o f l i g h t o r i g i n a t e a t A,$ $g e t r e f l e c t e d b y t h e s i d e s o f △ A B C$ $a t P, Q, R, a n d S a n d r e a c h e s$ $b a c k t o A t h e r e u p o n, f i n d θ i n$ $t e r m s o f ∠ A = α, ∠ B = β, ∠ C = γ .$
Commented by tanmay.chaudhury50@gmail.com last updated on 09/Jun/18

$p l s w a i t i a m t r y i n g t o s o l v e . . .$
	Answered by tanmay.chaudhury50@gmail.com last updated on 09/Jun/18

	Answered by MrW3 last updated on 14/Jun/18

	Commented by ajfour last updated on 14/Jun/18

	$t h a n k s S i r, b u t s o m e e x p l a n a t i o n$ $p l e a s e (s u p p o r t i n g t h e d i a g r a m) .$
	Commented by MrW3 last updated on 14/Jun/18

	$i f θ = α - β, t h e l i g h t r a y w i l l c o m e b a c k t o$ $i t s o r i g i n a l p o i n t A a f t e r r e f l e c t i o n s$ $o n t h e w a l l s .$
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