Which may or may not be inside the triangle.Ī median in a triangle is the line segment drawn from a vertex to the midpoint of its opposite side. It is interesting to note that in any triangle, the three lines containing the altitudes meet in one point (Figure 4).įigure 4 The three lines containing the altitudes intersect in a single point, įigure 3 An altitude for an obtuse triangle. In Figure 3, AM is the altitude to base BC. įigure 2 In a right triangle, each leg can serve as an altitude. In Figure 2, AC is an altitude to base BC, and BC is an altitude to base AC. Every altitude is the perpendicular segment from a vertex to its opposite side (or the extension of the opposite side) (Figure 1).įigure 1 Three bases and three altitudes for the same triangle.Īltitudes can sometimes coincide with a side of the triangle or can sometimes meet an extended base outside the triangle. Now isn't that kind of special?Įvery triangle has three bases (any of its sides) and three altitudes (heights). Just as there are special names for special types of triangles, so there are special names for special line segments within triangles. Summary of Coordinate Geometry Formulas.Slopes: Parallel and Perpendicular Lines.Similar Triangles: Perimeters and Areas.Proportional Parts of Similar Triangles.Formulas: Perimeter, Circumference, Area.Proving that Figures Are Parallelograms.Triangle Inequalities: Sides and Angles.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |