Pls tell me question no.9,11,12,13,14,15,16,17,18,The first one to answer in 1 minute will be marked as BRAINLIEST.
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Might as well ask for the solution of the whole chapter
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9 . Btp we have
a + (a+50) = 180 {sum of two adjacent
2a + 50 = 180 angles are 180degree}
2a =. 130
a = 65
Angles 65 and ( 65+50) = 115
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