Triangles

01/12/11Geometry1

Classifying TrianglesClassifying Triangles Joe Griggs

Subject: Geometry

Grade Level: High School

01/12/11Geometry2

Two Ways to Classify TrianglesTwo Ways to Classify Triangles

By Their Sides By Their Angles

01/12/11Geometry3

Classifying Triangles Classifying Triangles By Their SidesBy Their Sides

Scalene Isosceles

01/12/11Geometry4

Scalene TrianglesScalene Triangles

No sides are the same length

01/12/11Geometry5

Isosceles TrianglesIsosceles Triangles

At least two sides are the same length

01/12/11Geometry6

Classifying TrianglesClassifying Triangles By Their Angles By Their Angles

Acute Right Obtuse

01/12/11Geometry7

Acute TrianglesAcute Triangles

Acute triangles have three acute angles

01/12/11Geometry8

Right TrianglesRight Triangles

Right triangles have one right angle

01/12/11Geometry9

Obtuse TrianglesObtuse Triangles

Obtuse triangles have one obtuse angle

01/12/11Geometry10

Classify this triangle.Classify this triangle.

Right Scalene

01/12/11Geometry11

Classify this triangle.Classify this triangle.

Obtuse Isosceles

01/12/11Geometry12

Classify this triangle.Classify this triangle.

Acute Scalene

01/12/11Geometry13

Classify this triangle.Classify this triangle.

Acute Isosceles

01/12/11Geometry14

Classify this triangle.Classify this triangle.

Obtuse Scalene

01/12/11Geometry15

Classify this triangle.Classify this triangle.

Right Isosceles