Robitussin CF is a cold formula only; Robitussin DM contains the cough suppressant dextromethorphan, which, when taken in large doses, is capable of producing psychotropic effects. Robitussin CF does not contain that drug. 33 people found this useful.
Segment BD is an altitude of triangle ABC. Find the area of the triangle. Triangle ABC with altitude BD is shown. Point A is at 2, 1. Point B is at negative 1, 4. Point C is at 2, 6. Point D is at 2, 4. 7.5 9.5 10 15.
Since triangle ABC is an equilateral triangle, all its sides must be equal. i.e., AB = BC = CA = 3a(say). Therefore, BD = (1/3)*3a = a. Now, let us consider the triangle ABD. Using this information, we can find out the length of AD using the cosine rule.