please be patient] $\,\angle 1\,$ and $\,\angle 2\,$ are vertical angles, then $\,m\angle 1 = m\angle 2\ $. DEFINITION parallel lines. Two lines are parallel if and only if they lie in the same plane and do not intersect. Parallel lines are studied in more detail in a future section, Parallel Lines. The symbol â$\,\parallel\,$â is used to denote parallel lines.
Types of Rate Control Drugs. There are three types of rate control medications: 1  Beta Blockers, which slow the heart rate and relax the blood vessels. 2  Examples include Atenolol (Tenormin Â®), Carvedilol (Coregâ¢), Metoprolol (Toprol XLâ¢, Lopressor Â®), and Sotalol (Betapace Â®).
Taken for: High Blood Pressure, A Fib*, Anxiety*, Tachycardia, Palpitations ... More. Metoprolol is a cardiovascular medication (beta blocker). Uses: Metoprolol is prescribed for High Blood Pressure, Tachycardia, Palpitations, PVC's, Arrythmia, Chest Pain and Heart Attack and is mostly mentioned together with these indications. In addition, our data suggest that it is taken for A Fib and Anxiety, although it is not approved for these conditions*. Read More.