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Find giving reasons, A=X B=120? C AND D=110?

D e a r space s t u d e n t comma 7. i right parenthesis space angle A plus angle B equals angle A C D space space space left square bracket E x t e r i o r space a n g l e space p r o p e r t y right square bracket x plus 30 degree equals 110 degree x equals 80 degree i i right parenthesis space space angle P Q S plus angle P Q R equals 180 degree space space space space space space space space left square bracket L i n e a r space p a i r right square bracket 115 degree plus x equals 180 degree x equals 180 degree minus 115 degree x equals 65 degree i n space triangle P Q R x plus x plus y equals 180 degree space space space space space left square bracket a n g l e space s u m space p r o p e r t y space o f space triangle right square bracket 65 degree plus 65 degree plus y equals 180 degree 130 degree plus y equals 180 degree y equals 180 degree minus 130 degree y equals 50 degree i i i right parenthesis space space U sin g space e x t e r i o r space a n g l e space p r o p e r t y space o f space t r a i n g l e comma i. e space e x t e r i o r space i s space e q u a l space t o space t h e space s u m space o f space t w o space o p p o s i t e space i n t e r i o r space a n g l e s comma 2 x plus 3 x equals 110 degree 5 x equals 110 degree x equals 22 degree R e g a r d s
 

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Question number 7 part1
angle c =70 
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