Triangle, Polygons and Circles
These pages include activities dealing with triangles, polygons, and circles.
Exterior Angles
Tessellations
Properties of a Parallelogram
Incenter and Circumcenter
Triangle Sum Investigation
What is Special About all the Corresponding Parts of Similar Triangles?
Constructing Squares and Rectangles with Patty Paper
Triangle Inequality
Special Right Triangles
Exploring the Sum of the Angles of a Polygon
Angles of a Polygon
Folding a Circle
Discovering Ways Triangles are Congruent
Triangle Classification
Activity sheet
Sketchpad Exploration with Congruence Shortcuts
Do Now
Activity Sheet on Congruence Shortcuts
Exploring Properties of a Midsegment with a
Communicator
Exploring Properties of a Midsegment with Patty Paper
Find the Length of an Arc
How is the Circumference of a Circle Related to the Length of the Diameter?