Curated OER
Tricky Triangle
In this triangle worksheet, students solve 1 word problem about the lengths of a triangle. Students determine the length of the longest side given the ratio of the angle measures.
Curated OER
Adding Negative Numbers
In this integers worksheet, students solve 16 addition problems by adding two integers together. There is no answer...
Curated OER
Right Triangles
In this right triangles worksheet, 10th graders solve and complete 12 various types of problems. First, they solve for x given each of the right triangles shown. Then, students determine the length of the shorter diagonal given the...
Curated OER
How to be a Great Navigator!
Students examine historical methods of navigation. They discuss the techniques of "Dead Reckoning," "Heaving the Log," and "Chip Log," pretend to sail from Europe to North America using vectors and determine the location of their...
Curated OER
Five Volume of Pyramids Problems
In this pyramids worksheet, students calculate the volume of pyramids in four multiple choice and one free-response problem. The solutions are provided.
Curated OER
Making Shapes
Tenth graders construct geometric figures using compasses and protractors.
Curated OER
Atmospheric Shielding from Radiation I
In this radiation learning exercise, students calculate the distance of a satellite in orbit to determine the placement of a radiation detection device. This learning exercise has 2 problems to solve.
Curated OER
Geometric Figures
Young scholars compare, classify and calculate the area of geometric figures such as rectangles, squares, circles and triangles.
Curated OER
Exploring Special Segments in Triangles
Young scholars discover that four special segments have a common intersection point. They identify the position of the intersection point in triangles. They produce conjectures about areas of the divided triangles.
Curated OER
Wing Shapes and Areas
Students, after reading the explanation given below, use FoilSim to determine the weight of the aircraft that can be lifted by a pair of wings of each type. They also design a unique platform of a wing to lift a plane weighing 11500 pounds.
CK-12 Foundation
Ck 12: Geometry: Altitudes Intermediate
[Free Registration/Login may be required to access all resource tools.] This concept teaches students properties of altitudes of triangles and how to apply them.
CK-12 Foundation
Ck 12: Geometry: Altitudes
[Free Registration/Login may be required to access all resource tools.] Apply the properties of altitudes.
Cuemath
Cuemath: Altitude of a Triangle
Explore the world of the altitude of a triangle in this mini-lesson including its definition, altitudes in different types of triangles, formulae, some solved examples, and a few interactive questions for you to test your understanding.
Oswego City School District
Regents Exam Prep Center: Geometry Vocabulary Resources
A list of geometry definitions and a matching activity.
CK-12 Foundation
Ck 12: Geometry: Bisectors, Medians, Altitudes Study Guide
This study guide on bisectors, medians, and altitudes covers key vocabulary, different theorems, and facts about the altitude and triangles. It is available for download with free registration.
Math Open Reference
Math Open Reference: Parallelogram: (Coordinate Geometry)
Students are able to manipulate a parallelogram on a coordinate grid to explore properties of a parallelogram and then calculate the distance of the sides, altitude, and area. The resource also includes links to further explain important...
CK-12 Foundation
Ck 12: Geometry: Right Triangle Similarity Study Guide
[Free Registration/Login may be required to access all resource tools.] An overview of altitudes and geometric mean is provided in this study guide.
CK-12 Foundation
Ck 12: Geometry: Inscribed Similar Triangles
[Free Registration/Login may be required to access all resource tools.] Apply the fact that the altitude of a right triangle creates similar triangles.
CK-12 Foundation
Ck 12: Altitudes: Orthocenter
[Free Registration/Login Required] Students will use the interactive riangle and points to explore altitudes such as the orthocenter. Click learn more to watch a video and click challenge me to answer a practice question.
University of Georgia
University of Georgia: Altitudes & Orthocenters: Making Connections
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.
Math Planet
Math Planet: Geometry: More About Triangles
Explores triangles and related vocabulary through examples and a video lesson.
Oswego City School District
Regents Exam Prep Center: Concurrence
Find resources for class instruction on concurrence: a lesson on concurrence of medians, altitudes, angle bisectors, and perpendicular bisectors complete with definitions and example diagrams; a six-question practice quiz; and...
Other
Gobierno De Navarra: Puntos Y Rectas Notables De Un Triangle
Learn how to construct the bisectors, median and altitude of a triangle.
Curated OER
Altitudes & Orthocenters: Making Connections...
This site describes altitudes and orthocenters in triangles and their connections with the nine-point circle.