Instructional Video
Sophia Learning

Sophia: Finding the Area of Composite Figures: Lesson 4

7th - 8th
This lesson explains how to break composite figures into more simple shapes in order to find its area. It is 4 of 4 in the series titled "Finding the Area of Composite Figures."
Instructional Video
Khan Academy

Khan Academy: Area of Composite Shapes

6th - 7th
Models how to break an irregular polygon into smaller composite shapes, calculate the area for each of those, then add all the amounts together to get the total area. [5:15]
Instructional Video
Khan Academy

Khan Academy: Worked Examples: Geometry: Pythagorean Theorem, Area

9th - 10th Standards
Students watch a video tutorial to learn how to solve area problems of composite figures using the Pythagorean Theorem.
Instructional Video
Loyola University Chicago

Math Flix: Pick's Formula for Irregular Shapes

5th - 8th
This QuickTime movie provides an excellent introduction to Pick's Formula for irregular shapes with several examples. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Instructional Video
Khan Academy

Khan Academy: Decomposing Shapes to Find Area: Add

2nd - 3rd Standards
Demonstrates how to break an irregular shape into three rectangles, find the individual areas, and then add them together. [3:36]
Instructional Video
Khan Academy

Khan Academy: Area of Kites

6th - 8th
Learn how to find the area of a kite. A kite is a type of quadrilateral that is symmetric around one of its diagonals.
Instructional Video
Sophia Learning

Sophia: Finding the Area of Composite Figures: Lesson 3

9th - 10th
This lesson explains how to break composite figures into more simple shapes in order to find its area. It is 3 of 4 in the series titled "Finding the Area of Composite Figures."