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Ina school a teacher asked the studentof class ix to find value of a in thefollowing figure of the lines pandq oreparallel Vandana answered 35. Is sheCorrect?3x12o(22-15

Answer»

3x+20=2x-15(alternate angles)3x-2x= -15-20x= -35°

if two line are parallel then alternate angles are equal therefore 3x+20 equal to 2x-153x-2x+20+15 equal to 0x+35 equal to 0 x equal to -35

(3x+20) +(2x-15) =180° 5x=175°so, that's how x=35°yes, she is correct... like the answer if you like



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