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Shravana1:
hello,Which Questn. Please??
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in 1st questions
4th part:-
2a+3a+4a= 180
9a=180
a=20
so angles are =2a= 40
3a=60
4a=80.
4th part:-
2a+3a+4a= 180
9a=180
a=20
so angles are =2a= 40
3a=60
4a=80.
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