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.
So if a base angle in an isosceles triangle measured 58 degrees, we could plug that into our formula to determine the measure of the apex angle: M = 180 - (2 * 58). M = 180 - 116. M = 64. The measure of the triangle's apex angle is 64 degrees.