There are more types of Angles on the basis of the pairs of Angles. So, the value of a reflex Angle ranges from 180 degrees to 360 degrees. Reflex Angle: if an Angle measures less than 360 degrees but greater than 180 degrees, then it is known as a reflex Angle. All the Angles in a square and a rectAngle are right Angles i.e, are equal to 90 degrees. If this right Angle is present in a triAngle, we call the triAngle a right-Angled triAngle. Right Angle: if an Angle measures exactly 90 degrees, then it is called a right Angle. So, the value of an obtuse Angle ranges from 90 degrees to 180 degrees. Obtuse Angle: An Angle measuring more than 90 degrees but less than 180 degrees is called an obtuse Angle. So, the value of an acute Angle varies from 0 to 90 degrees. Angles are Classified According to Their Sizes as FollowsĪcute Angle: An Angle measuring less than 90 degrees is called an acute Angle. Angles are commonly measured in terms of degree. B is the point of intersection called the vertex and AB and BC are the sides of the Angle.
An Angle is denoted by the symbol ∠.įrom the figure, ∠ABC is an Angle. When two lines intersect they form four Angles at the point of intersection. Various parts of an angle are vertex, arms, interior, and exterior angles. We know that two lines having a common vertex form an angle. An angle that measures 90 0 is a Complementary angle and whose measure is 180 0 is a Supplementary Angle. Complementary and Supplementary Angles are the two types of angles based on their measures.
0 kommentar(er)
