Pin it!
Google Plus

Area Tool

Grade:
6-8
Standards:
Geometry
Math Content:
Geometry

Use this tool to determine how the length of the base and the height of a figure can be used to determine its area. Can you find the similarities and differences between the area formulas for trapezoids, parallelograms, and triangles?

Investigate trapezoids, parallelograms, and triangles, using the tabs along the top of the frame. Drag the vertices to explore different sizes of each shape.

The "Add to Table" button can be used to record data in the table, which may be useful in trying to identify patterns.

Investigate various sizes for each of the different shapes.
  • What is the formula for finding the area of a trapezoid? How is the length of the midline involved in the formula?
  • What is the formula for finding the area of a parallelogram? How is it related to the formula for finding the area of a rectangle?
  • What is the formula for finding the area of a triangle? How is it related to the formula for finding the area of a rectangle?