Question

in the given figure show that l parallel to m​

Answer 1

angle of l is given 80 degree so to show m parallel to l m should also have 80 degree So there is a triangle forming which is joined with m so but only two sides are given the third side we need to find so that we can find the angle of m so the formula includes the so we have to find out the angle of of the triangle so the formula includes that if two values are given and we have to find the outer angle of the missing angle then the outer angle of the missing angle has equal to to sum of both the given angles equals to 45 + 35 equals to 80 so the angle of m equals to 80 degrees now 80 degree is given off l so 80 degree equal to 80 degree means l and m are parallel