Angle
A figure formed by two rays is called Angle.Rays are the sides of the angle, sharing a common end point, called the vertex of the angle.There are many types of angles given below:
Vertically Opposite Angle
Those angles which are opposite to each other when two lines cross.X-denotes vertically opposite angle given in the figure below:
Supplementary / Linear Pair Angle
Two angles that form a line and the sum of angles is equal to 180°.When two angles are supplementary, each angle is said to be the supplement of the other.
Two angles that occupy corresponding positions.The angles which occupy the same relative position at each intersection where a straight line crosses two others.
Alternate Interior Angles are created where a transversal crosses two (usually parallel) lines.Each pair of these angles are inside the parallel lines, and on opposite sides of the transversal. Two angles that lie between parallel lines on opposite sides of the transversal.
Alternate Exterior Angles are a pair of angles on the outer side of each of those two lines but on opposite sides of the transversal.Two angles that lie outside parallel lines on opposite sides of the transversal.
The pairs of angles on one side of the transversal but inside the two lines are called Consecutive Interior Angles.
Corresponding Angle
Two angles that occupy corresponding positions.The angles which occupy the same relative position at each intersection where a straight line crosses two others.
Alternate Interior Angle
Alternate Interior Angles are created where a transversal crosses two (usually parallel) lines.Each pair of these angles are inside the parallel lines, and on opposite sides of the transversal. Two angles that lie between parallel lines on opposite sides of the transversal.
Alternate Exterior Angle
Alternate Exterior Angles are a pair of angles on the outer side of each of those two lines but on opposite sides of the transversal.Two angles that lie outside parallel lines on opposite sides of the transversal.
Consecutive Interior Angle
The pairs of angles on one side of the transversal but inside the two lines are called Consecutive Interior Angles.
Acute angle
Acute angles are those angles whose all angles are less than 90 degrees are known as Acute angles
Obtuse angle
Obtuse angles are those angles whose one of the angle is more than 90 degrees are known as Obtuse angles.
Right angle
Right angles in which an angle is exactly 90 degrees and other two angles are equal to the sum of 90 degrees.
Adjacent Angle
Adjacent angles are such that:
- they have a common vertex;
- they have a common arm;
- the non-common arms are on either side of the common arm.
Such pairs of angles are called adjacent angles.
Complementary Angle
When the sum of the measures of two angles is 90°, the angles are called complementary angles.Whenever two angles are complementary, each angle is said to be the complement of the other angle
Conjugate Angle:
Two angles whose sum is 360° are called Conjugate Angles.
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