Trigonometric Ratios

This basic trigonometry video tutorial provides an introduction into trigonometric ratios as it relates to a course in geometry. It explains how to calculate the sin, cos, and tan ratio of a right triangle given the 3 sides. You can use the pythagorean theorem to find the value of the missing side. In addition, it explains how to evaluate trigonometric functions using right triangle trigonometry and special right triangles such as the 30 60 90 triangle or the 45 45 90 triangle. This video contains plenty of examples and practice problems including find missing angles as well as missing sides.

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Polygons:
   • Polygons  

Quadrilaterals:
   • Quadrilaterals - Geometry  

Points, Lines, Planes, & Segments:
   • Points, Lines, Planes, Segments, & Rays - ...  

Similar Triangles:
   • Similar Triangles  

Pythagorean Theorem:
   • Pythagorean Theorem  

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The Distance Formula:
   • Distance Formula  

Distance Between 2 Points - 3D:
   • How To Find The Distance Between 2 Points ...  

Special Right Triangles - 30 60 90:
   • Special Right Triangles - 30 60 90 - Geome...  

Special Right Triangles - 45 45 90:
   • Special Right Triangles - 45 45 90 - Trigo...  

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Angle of Elevation Word Problems:
   • Angle of Elevation and Depression Word Pro...  

Finding The Missing Side of a triangle:
   • How To Calculate The Missing Side Length o...  

Finding The Missing Angle of a Triangle:
   • How To Calculate The Missing Angle In a Tr...  

Two Triangle Trigonometry Problems:
   • How To Solve Two Triangle Trigonometry Pro...  

How To Find The Area of a Rectangle:
   • How To Find The Area of a Rectangle | Math  

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