Question

please answer this: ​

Answer 1

mark an angle opposite to angle y which is equal to it due to VOA property . Now angle x and y are equal with alternative angle property . Now make an angle at the point where line n and the line with x and y angles intersect , alternate to y . This proves the thing that -that angle is equal to y and y is equal to x . hence proved. you can do the same procedure with a and b

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