Follow these instructions to unclog your air conditionerâs drain line. 1  Step 1: Get out your wet/dry vacuum. 2  Step 2: Find the main drain line outside of your home. 3  Step 3: Connect the wet/dry vacuum hose to the main drain line.  Step 4: Check the vacuum for algae water and other debris.
The base angles theorem states that if the sides of a triangle are congruent (Isosceles triangle)then the angles opposite these sides are congruent.
The angle addition postulate states that if you have two adjacent angles, you can rename the two small angles as one bigger angle. If the angles are ABC and CBD, where they share ray BC, you can rename these two angles as the large angle ABD. Angle addition postulate would be your reason for saying that ABC + CBD = ABD. The property your looking for where showing that angle 1 + angle 2 = 180 degrees would either be the definition of a linear pair.