Lesson Plan
Curated OER

Solving Right Triangles

For Teachers 10th - 11th
Young scholars investigate the basic trigonometric functions.  In this geometry/trigonometry lesson, students explore strategies to solve right triangles using basic trigonometric functions.  The lesson includes an application...
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Tube Viewer Simulation

For Students 9th - 10th
A computer simulation of viewing through various lengths of tubes at different distances. The simulation also has an exploration of focus questions. [Requires Java.]
Interactive
Curated OER

Zona Land: Right Triangle Solver 2

For Students 9th - 10th
A java applet that will solve a right triangle when you provide angle D and its adjacent side e.
Interactive
Curated OER

Zona Land: Right Triangle Solver 3

For Students 9th - 10th Standards
A java applet that will solve a right triangle when you provide angle D and the length of the hypotenuse f.
Interactive
Curated OER

Zona Land: Right Triangle Solver 4

For Students 9th - 10th Standards
A java applet that will solve a right triangle when you provide side lengths for d (long side) and e (short side).
Interactive
Curated OER

Zona Land: Right Triangle Solver 5

For Students 9th - 10th
A java applet that will solve a right triangle when you provide the lengths of side e (short side) and side f (hypotenuse).
Interactive
Curated OER

Zona Land: Right Triangle Solver 6

For Students 9th - 10th
A java applet that will solve a right triangle when you provide the lengths for side d (long side) and for side f (hypotenuse).
Activity
Math.com

Math.com: Pythagorean Theorem and Right Triangle Facts

For Students 6th - 8th Standards
The lesson investigates right triangles and the Pythagorean Theorem. Definitions, examples, and a worksheet are available.
Unit Plan
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Introduccion a La Trigonometria

For Students 9th - 10th Standards
This is an interactive activity introducing the concept of trigonometry and working with trigonometric functions to solve right triangles.
Handout
Other

Dans Math: Lessons: Trigonometry

For Students 9th - 10th
College professor Dan Bach reviews basic trig concepts, including trig functions, right triangles, circles, radians, and polar coordinates. Site includes animated graphs and detailed examples.
Unknown Type
McGraw Hill

Glencoe Mathematics: Online Study Tools: Quiz on Solving Right Triangles

For Students 9th - 10th Standards
Learners demonstrate comprehension of advanced mathematical concepts in Trigonometry. The questions check understanding on the topic of solving right triangles.
Activity
Analyze Math

Analyze Math: Triangle Problems

For Students 9th - 10th Standards
Here are five triangle problems to solve using the Law of Sines, Law of Cosines, Pythagorean Theorem, and trigonometry. All problems have detailed written solutions included.
Activity
Interactive Mathematics

Interactive Mathematics: The Right Triangle and Applications

For Students 9th - 10th Standards
Learn how to "solve" a right triangle and apply the concept to real world situations using angles of elevation and depression.