Shodor Education Foundation
Triangle Area
While the lesson focuses on right triangles, this activity offers a great way to practice the area of all triangles through an interactive webpage. The activity begins with the class taking a square paper and cutting in in half; can they...
Curated OER
Unit Squares and Triangles
This is an interesting geometry problem. Given the figure, find the area of a triangle that is created by the intersecting lines. The solution requires one to use what he/she knows about coordinate geometry, as well as triangle...
5280 Math
Triangle Area Patterns
Combine algebraic and geometric strategies to find solutions. The task asks learners to find the coordinates of a third vertex of a triangle to create a triangle with a specific area. The project is a set of seven problems that...
Curated OER
Tale of the Tape
How can baseball and skeet-shooting be modeled mathematically? Sports lovers and young mathematicians learn how to use quadratic equations and systems of equations to model the flight paths of various objects.
Texas Instruments
Texas Instruments: Using the Distance Formula to Find Trapezoidal Area
This activity can be used as a formative assessment review of algebra and coordinate geometry.
CK-12 Foundation
Ck 12: Distance Formula and the Pythagorean Theorem
[Free Registration/Login Required] Students use the distance formula and the pythagorean theorem to determine the quickest route to the treasure. Click learn more to watch a video and click challenge me to answer a practice question.
Oswego City School District
Regents Exam Prep Center: Working With Distance (Length)
A seven-question quiz in which you'll answer questions about distance. You'll need to know how to find distance between points on a coordinate plane.
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems: Geometry
Practice using your graphing calculator for geometry problems, including the use of the Pythagorean Theorem and the distance formula. If you get stumped or if you would like to check your work, then select the View Solution button, which...