Geometry is a fundamental branch of mathematics that deals with points, lines, shapes, and space. Below are some basic concepts of geometry:

  • Point: A point is a fundamental building block of geometry. It has no length, width, or height and is represented by a dot.

  • Line: A line is a straight path that extends infinitely in both directions. It is made up of an infinite number of points.

  • Plane: A plane is a flat surface that extends infinitely in all directions. It is made up of an infinite number of lines.

  • Triangle: A triangle is a polygon with three sides and three vertices. It is one of the most basic shapes in geometry.

  • Circle: A circle is a set of points in a plane that are all the same distance from a given point, called the center.

  • Square: A square is a polygon with four equal sides and four right angles.

  • Rectangle: A rectangle is a polygon with four sides and four right angles, but opposite sides are not necessarily equal.

  • Parallelogram: A parallelogram is a polygon with four sides where opposite sides are parallel and equal in length.

  • Trapezoid: A trapezoid is a polygon with four sides where at least one pair of opposite sides are parallel.

  • Rhombus: A rhombus is a parallelogram with all sides of equal length.

For more information on geometry, you can visit our Geometry Tutorial.

Images:

  • Point
  • Line
  • Plane
  • Triangle
  • Circle
  • Square
  • Rectangle
  • Parallelogram
  • Trapezoid
  • Rhombus