INTERSECTION OF LINES

Today we are going to talk about the interception of lines, where is the basic stuff in order to understand de basic geometric part from Algebra.

Let's get started !

When two lines intersect they form two pairs of opposite angles, A + C and B + D. Another words for opposite angles are vertical angles. 

Vertical angles are always congruent, which means that they are equal. Adjacent angles are angles that come out of the same vertex. Adjacent angles share a common ray and do not overlap. 

The size of the angle xzy in the picture above is the sum of the angles A and B. Two angles are said to be complementary when the sum of the two angles is 90°. 

PD: Specially I liked to this post about this because i found interesting that humans beings makes science from intersection between two lines, where we analyze points, interception points angles between lines...
I found it interesting because if i were scientist maybe i wouldn't give it as much importance as it deserves for --------> algebraic or geometric purposes.