Monday, September 20, 2010

Various kinds of angles in geometry

Today am going to give you some useful information about list of different types of angles in geometry. So let us start learning.

  • Right angle: If any angle exactly measures 90 degree is known as right angle.
  • Acute angle: An angle whose measure is less then one right angle is known as acute angle.
  • Obtuse angle : An angle whose measure is more than one right angle and less than two right angles is known as obtuse angle.
  • Vertically opposite angles:If any two straight lines intersect each other at any point, the pairs of opposite angles are formed are called vertically opposite angles
  • Straight angle: :An angle whose measure is exactly 180o is known as a straight angle
  • Reflex angle : An angle whose measure is more than 180o and less than 360o is known as angle.
  • Complete angle: An angle whose measure is 360o is said to be a complete angle.
  • Equal angle : If any Two angles are said to be equal, if they have the same measure.
  • Adjacent angle:Any Two angles having a common arm and a common vertex, such that the other arms of these angles are on opposite sides of the common arm, are known as adjacent angles.
  • Complementary angles:If the sum of any two angles is one right angle (i.e., 90o), they are known as complementary angles.
  • Supplementary angle:If any Two angles are said to be supplementary, if the sum of their measures is 180o.
  • Bisector of an angle: If a ray or a straight line passing through the vertex of that angle and divides the angle into two angles of equal measurement, then that line is called as the Bisector of that angle.
  • Linear pair of angle: If any Two adjacent angles are said to form a linear pair of angles
This is all about various kinds of angles in math.

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