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.
In the triangle ABC shown above, sides AB and AC are congruent. According to the theorem, the angles C and B opposite these sides are also congruent. < B $\cong$ < C. The congruent sides AB and AC are called the legs and the third side BC is called the base of the isosceles triangle. The congruent angles B and C are called the base angles and angle A is called the vertex angle of the isosceles triangle. Using these key words, the theorem can also be stated as,