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Question -

What value ofy would make AOB, a line in the figure, if тИаAOC = 4y and тИаBOC = (6y + 30).



Answer -

In the figure,
AOB is a line if
тИаAOC + тИаBOC = 180┬░
тЗТ 6y + 30┬░ + 4y= 180┬░
тЗТ 10y= 180┬░-30┬░= 150┬░
150┬░
тЗТ y == 15┬░
тИ┤ y = 15┬░

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