Question

for what value of x+y in the given figure will ABC be a line​

Answer 1

hello ✌✌

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For ABC to be a line, the sum of the two adjacent angles must be 180° i.e.,x + y = 180°.
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Answer 2

x+y must be equal to 180°. For ABC to be a line, the sum of two adjacent angles must be 180°.