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In the given figure, what value of x will make AOB a straight line?(a) x = 50 (b) x = 100 (c) x = 60 (d) x = 80 |
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Answer» (d) x = 80 Because, It is given that the angles of the side be 55o, 45o and (x)o. = x + 55o + 45o = 180o … [∵ Linear pair] = x = 180 – 100 = x = 80 |
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