Angle

(I) Angle formed by intersection each other lines
-Vertical opposite angle
- Adjecent angle
Straight angle
-Complementary angles
-Supplementary angle
(II) Angle formed by a transversal with the parallel lines
-Alternative angles
When a transversal cuts a pair of lines then,
*Both interior
*Both non adjacent
*Both either side
(II) Co-interior angle
when a transversal line cuts a pair of lines then the interior angles on the same side of the transversal are called co-interior or consecutive interior angles.
(III) Corresponding angle
If a pairs of lines is intersected by a transversal line, then the pair of non adjacent interior and exterior angle formed on the same side of it are called corresponding angles.

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