1 / 4

Triangles

Triangles. A triangle is formed by connecting three non-collinear points by three segments Each point is a vertex of the triangle Each segment is a side of the triangle A triangle is named by listing its vertices in order

rowena
Download Presentation

Triangles

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Triangles • A triangle is formed by connecting three non-collinear points by three segments • Each point is a vertex of the triangle • Each segment is a side of the triangle • A triangle is named by listing its vertices in order • ∆ABC, ∆CBA, ∆BAC, ∆CAB, ∆BCA, and ∆ACB are all valid names for this triangle • In the triangle at left, BC is the side oppositeA A • B • C •

  2. Triangles • Triangles can be classified according to the measure of their angles • An acute triangle has three acute angles • A right triangle has one right angle • An obtuse triangle has one obtuse angle • An equiangular triangle has three congruent angles

  3. Triangles • Triangles can also be classified according to the lengths of their sides • An equilateral triangle has three congruent sides • An isosceles triangle has at least two congruent sides • Note that this means equilateral triangles are also isosceles • A scalene triangle has no congruent sides

  4. Triangles • Both types of classifications may be used to describe a single triangle • Can you find an acute isosceles triangle? • Can you find an isosceles right triangle? • Can you find an obtuse scalene triangle?

More Related