Download Geometry Triangles

Geometry
Triangles
What Am I ?
First a few definitions;
Triangles all have three sides, but when you consider other factors there are a variety of types. Each type of
triangle can be classified by its characteristics. Whether the triangle is Scalene, or Isosceles, or Equilateral, or
Acute, or Right, or Obtuse is dependent on the kind of angles and sides it has. Look at the sketches below and see
if you can write good definitions for each type of triangle. Add the definitions to your glossary.
Right Triangles
Acute Triangles
Obtuse Triangles
Scalene Triangles
Isosceles Triangles
Equilateral Triangles
Triangles Classify.doc
1
revised:10/31/2006
Triangle Relationships
Here is a graphic organizer that should help you classify Triangles by their characteristics. Complete the NAMES in
each triangle and complete phrases in the boxes to help show the properties of the Triangles.
Triangles
Characteristics
Classifications
l
Sum of Interior
Angles
Exterior Angles
By Sides
By Angles
Sum of
Exterior Angles
NO sides
equal
At least
TWO sides
equal
All THREE
sides equal
Triangles Classify.doc
2
revised:10/31/2006