Plsss help ill mark brainliest
given: angles 1 and 2 are a linear pair prove that x=11
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Mathematics, 21.09.2021 08:30 ladyree8721
Plsss help ill mark brainliest
given: angles 1 and 2 are a linear pair prove that x=11
Angles 1 and 2 are a linear pair.
1) Given
2) Angles 1 and 2 are supplementary.
2) Linear Pair Postulate
3) m∠1 + m∠2 = 180°
3)
4) 11x - 6 + 4x + 21 = 180
4)
5) 15x + 15 = 180
5)
6) 15x = 165
6)
7) x = 11
7)
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