Study MaterialsRD Sharma SolutionsRD Sharma Class 7 Solutions Chapter 14 Lines and Angles

RD Sharma Class 7 Solutions Chapter 14 Lines and Angles

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RD Sharma Class 7 Solutions Chapter 14 Lines and Angles

A Line that intersects two or more given lines at distinct points is called a transversal to the given lines.

Lines in a plane are parallel if they do not intersect when produced indefinitely in either direction.

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    The distance between two parallel lines is the same everywhere and is equal to the perpendicular distance between them.

    If two parallel lines are intersected by a transversal then

    • Pairs of alternate (interior and exterior) angles are equal
    • Pairs of corresponding angles are equal
    • Interior angels on the same side of the transversal are supplementary

    If two lines are intersected by a transversal, then they are parallel if any one of the following is true:

    • The angles of a pair of corresponding angles are equal.
    • The angles of a pair of alternate interior angles are equal.
    • The angles of a pair of interior angles on the same side of the transversal are supplementary

     

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