certain pairs of triangles are shown below. The column heading represents various theorems used to prove triangles are similar. identify which theorem is appropriate to prove each pair of triangles similar and then classify the triangles under the column heading.

Concerned about campus safety, college officials want to estimate the percentage of students who carry a gun, knife, or other such weapon. how many randomly selected students must be surveyed in order to be 95 % confident that the sample percentage has a margin of error of two percentage points?