1.

lf two straight line are perpendicular to two parallel line, then show that these straight line are parallel to each other

Answer» LET LINE l and m be perpendicular to n.

suppose line n MAKES an angle X with the positive side of the x axis, then the lines l and m will make an angle x+90 DEGREES with the positive side of x axis. so both l and m will have the same slope, so they will be parallel to each other


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