Sophia Learning
Sophia: Using Right Triangle Trigonometry to Find the Area of Regular Polygons
This lesson will demonstrate how to use right triangle trigonometry and special right triangles (45-45-90 and 30-60-90) to find the area of triangles given the side lengths of the polygon. It is 3 of 4 in the series titled "Using Right...
Sophia Learning
Sophia: Using Right Triangle Trigonometry to Find the Area of Regular Polygons
This lesson will demonstrate how to use right triangle trigonometry and special right triangles (45-45-90 and 30-60-90) to find the area of triangles given the side lengths of the polygon.
Sophia Learning
Sophia: Finding the Missing Angle of Right Triangle: Lesson 1
Following this lesson, the angle measure of one non-right angle of a right triangle, and the right angle symbol in the right angle of the triangle, you'll be able to determine the value of the missing angle. It is 1 of 9 in the series...
Sophia Learning
Sophia: Sine and Cosine: Lesson 4
The differences and similarities of the graphs for sine and cosine are discussed here. This lesson is 4 of 7 in the series titled "Sine and Cosine."
Sophia Learning
Sophia: Drawing a Triangle on the Unit Circle
This lesson shows how to draw a right triangle on a unit circle.
Sophia Learning
Sophia: Relationships of Trigonometric Functions: Lesson 3
Relationships among the six trigonometric functions are explored in this lesson. It is 3 of 4 in the series titled "Relationships of Trigonometric Functions." Includes short quiz. [4:46]