Area of Triangles
Use the Instructional Plan for Lesson 1 as described at the following link:Discovering the Area Formula for Triangles
NOTES: When using the Area Tool for Triangles,
- be sure to click on the TRIANGLES button before beginning the exploration, and
- click and drag the vertices until AB and CD are whole number values.
Answer the following questions in your math journal:
- How does the area of a triangle compare to the area of a rectangle with the same base length and height?
- Do you think this will work for any triangle? Why or why not?
Documents for download: