Lines - Class 2

  • What is Line
  • Types of Lines
  • What is a Line?

    A line is a thin shape with only length and no breadth. We can say that the line can be extended in both directions and it has no ends.

    Different types of lines

    Types of Lines

    • Straight Line

    A straight line is a line that does not bend. The straight lines are shown below:

    A straight line

    It is the shortest possible path between any two places.

    For example, the aeroplane lands in a straight line.

    Example of straight line
    • Curved Line

    The curved line is a line that is not straight and has curves. The curved lines are shown below:

    A curved line

    For example, the path of the aeroplane move is a curved line.

    Example of curved line
    • Horizontal Line

    A horizontal line can be defined as a straight line that goes from left to right.

    A horizontal line

    For example, the car is resting horizontally.

    Example of horizontal line
    • Vertical Line

    A vertical line is always one that extends upward or downward from bottom to top. Vertical lines that run vertically include standing lines as well. The vertical line is shown below:

    A vertical line

    For example, the building stands vertically.

    Example of vertical line
    • Parallel Lines

    The term "parallel lines" refers to lines that are on the same plane which always maintain an equal distance from one another and never cross over one another. They can be both horizontal and vertical. The parallel lines are shown below:

    Parallel lines

    For example, a train track and a racing track run parallel.

    Example of Parallel lines
    • Intersecting Lines

    Intersecting lines are lines that cross or meet at some point. They can be two or more lines that have exactly one point in common. The point where these lines meet or their point of junction is the "point of intersection". The intersecting lines are shown below:

    Intersecting lines

    For example, the roads intersect each other.

    Example of Intersecting lines
    • Perpendicular Lines

    Perpendicular lines are lines that meet at a right angle, forming an "L" shape. A horizontal and vertical line that intersects each other indicates that they are perpendicular to one another. The perpendicular lines are shown below:

    Perpendicular lines

    For example, the wickets and a lamp post are standing perpendicular to the ground.

    Example of Perpendicular lines

    Example: Select the odd one.

    a) Example of Rectangle shape
    b) Example of Square shape
    c) Example of Circle shape
    d) Example of Star shape

    Answer: c) Curved lines that are not straight

    Explanation: Figures in options (a), (b) and (d) are made of straight lines.

    The figure in option (c) is made of curved lines that are not straight.

    Example: Which of the following is NOT intersecting lines?

    a) Which of the following is NOT intersecting lines
    b) Find intersecting lines or not
    c) Intersecting lines or not
    d) Which one is intersecting lines

    Answer: d) intersecting lines

    Explanation: In options (a) and (c), the roads intersect each other.
    In option (b), the road and railway intersect each other.
    In option (d), the road and railway tracks are parallel.

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