in the given figure,if l parralel to m and angle a:angle b =2:3 .find the value of angle y
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y=72°
because... a:b=2:3 & and a+b=180°
so a=2×36=72°
then a=y (as L&m are parallel and n goes through them)
so y=72°
because... a:b=2:3 & and a+b=180°
so a=2×36=72°
then a=y (as L&m are parallel and n goes through them)
so y=72°
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