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Question -

In the figure, AOC is a line, find x.



Answer -

In the figure,
тИаAOB + тИаBOC = 180┬░ (Linear pair)
тЗТ 70┬░ + 2x = 180┬░
тЗТ 2x = 180┬░ тАУ 70┬░
тЗТ 2x = 110┬░тЗТx == 55┬░
тИ┤ x = 55┬░

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