CBSE CLASS 9 CHAPTER 6 LINES AND ANGLE || COMPLEMENTARY AND SUPPLEMENTARY ANGLES

COMPLEMENTARY ANGLES If the sum of the measures of two angles is 90^(@) then the angles are called complementary angles and each is called a complement of the other.

Lines And Angles - Some Basic Definitions|Types Of Angles|Complementary And Supplementary Angles|Relation Between Two Angles|Axioms

SUPPL.EMENTARY ANGLES Two angles are said to be supplementary angles if the sum of their measures is 180^(@) and each of them is called a supplement of the other.

Some Basic Definition-Collinear And Non Collinear Points |Angles & Its Types|Complementary And Supplementary Angles|Relation Between Two Angles-Adjacent Angles|Linear Pair Of Angles,Vertically Opposite Angles|Axioms |Theorem |Transversal |Corresponding Angles,Alternate Interior Angles,Co-interior Angles

In Fig. 5.39, P, Q and R are collinear points and TQ bot PR, Name, (a) pair of complementary angles (b) two pairs of supplementary angles. (c) four pairs of adjacent angles.

OMR|Trigonometric Functions Of Sum And Difference Of Two Angles|Questions|Complementary And Supplementary Angles|Questions|Double Angle Formulas

Define the following terms : (i) Angle (ii) Interior of an angle (iii) Obtuse angle (iv) Reflex angle (v) Complementary angles (vi) Supplementary angles