In this video we will learn about:

- Complementary angles
- Supplementary angles
- Adjacent angles
- Linear Pair
- Vertically opposite angles
- Proof for vertically opposite angles being equal
**Complementary Angle:**A pair of angles is said to be complementary if the sum of their measures is equal to 90^{o}and each angle is said to be the complement of the other**Supplementary Angle:**If the sum of the measures of a pair of angles is equal to 180^{o}, then it is called a supplementary angle**Adjacent Angle:**Two angles are said to be adjacent if they have a common arm and a common vertex and their non-common arm lies on the opposite sides of the common arm**Linear Pair:**A pair of adjacent angles is said to be forming linear pairs if the sum of the adjacent angles is equal to 180^{o}, i.e., which is possible only when the non-common arms of the pair of adjacent angles form opposite rays. It is a special case of adjacent angles.- Vertically opposite angles are equal

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