in the given figure oa and ob are opposite rays of y=20 then x is equal to??
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Sum of x and y is equal to 180
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(By Linear Pair)
A linear pair is a pair of adjacent, supplementary angles. Adjacent means next to each other and supplementary means that the sum of the measures of the two angles is equal to 180
o
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x=75
0
=>x+y=180
0
=>75
0
+y=180
0
=>y=180
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−75
0
=105
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