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.
300 BC) gave an analytical proof of Pythagoras theorem by repeatedly using SAS theorem which he propounded as a theorem. Euclid who propounded the SAS (side angle side) method earlier used by Thales as a theorem also repeatedly used it in his proof that the base angles of an isosceles triangle are equal.