Solve Lines and Angles Question Paper for CBSE Class 9

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LINES AND ANGLES CBSE Class 9
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LINES AND ANGLES

• A line is a one-dimensional figure that has no
  thickness and which extends infinitely in both
  the directions. A line segment is a part of a
  line whose both ends are fixed.
• Two   angles are adjacent, if they have a common
  vertex, a common arm and their non-common arms
  are on different sides of the common side. A pair
  of adjacent angles, whose non-common sides lie
  opposite to each other at an angle of 180, is
  called a linear pair. A pair of non-adjacent
  angles formed by the intersection of two straight
  lines is called vertically opposite angles.
  Vertically opposite angles are equal.
•  Parallel lines are coplanar and they do not
  intersect each other. Transversal intersects two
  or more lines. If a transversal intersects a pair
  of parallel lines, then pair of vertically
  opposite angles is equal. pair of alternate
  angles is equal. consecutive interior angles are
  supplementary. corresponding angles are equal

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Extramarks Approach

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  Angles for Class 9 question paper in one place.
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