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.
Report Abuse. The base angles of an isosceles right triangle are both Ï/4 = 45Â°. This is because both angles must be equal (because the corresponding sides are congruent) and because the third angle is a right angle (Ï/2 = 90Â°). Since all the angles in a triangle must add up to Ï = 180Â°, the other two base angles must be 180Â° - 90Â° = 90Â° = Ï/2; therefore each angle must be 45Â° = Ï/4.