Arestaurant offers 6 appetizers, 8 salads, 7 entrees and 9 desserts. in how many ways can a customer select a meal, if a meal consists of an appetizer, a salad, an entree and a dessert?

step-by-step explanation:

im not sure what the answer is

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.