Question

Lines and angles sum

Answer 1

Answer:

the sum of two parallel line the angle between them is zero when the two lines are opposite then the angle between is 180 when the two lines are perpendicular then the angle between them is 90 degree

those LINE which has sum of 180 degree they are called supplementary angles and those line who have some of 90 degree are known as complementary angles

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Answer 2

The sum of angles on a straight line is 180°

And the sum of angles between two parallel lines is 0°