Properties of Interior Exterior Angles in Triangles and Quadrilaterals - 7:49

Properties of Angles formed by a Transversal - 6:17

Properties of Quadrilaterals - 4:36

Altitude of a Triangle Properties - 7:50

Median of a Triangle Properties - 6:42

Introduction to Sine Law - 9:39

Introduction to Cosine Law - 11:38

Coordinate Geometry - 6:46

KEY CONCEPTS:ONLY for RIGHT ANGLED TRIANGLESSOH-CAH-TOASOH - sinA=opp/hypCAH - cosA=adj/hypTOA - tanA=opp/adjLongest side of right angled triangles is called the HYPOTENUSE.  Always found on the opposite side of the right angle of the triangle.To find the angle use the inverse of the trig buttons on your calculator.

KEY CONCEPTS: ONLY for RIGHT ANGLED TRIANGLES SOH-CAH-TOA SOH - sinA=opp/hyp CAH - cosA=adj/hyp TOA - tanA=opp/adj Longest side of right angled triangles is called the HYPOTENUSE. Always found on the opposite side of the right angle of the triangle. To find the angle use the inverse of the trig buttons on your calculator.

Trig Ratios SOH CAH TOA - 20:58

KEY CONCEPTS:Complementary Angles = 90Supplementary Angles = 180Opposite Angles = one anotherParallel Lines with a Transverse through it:Corresponding Angles = one another (F-Shape)Co-Interior Angles add up to 180

KEY CONCEPTS: Complementary Angles = 90 Supplementary Angles = 180 Opposite Angles = one another Parallel Lines with a Transverse through it: Corresponding Angles = one another (F-Shape) Co-Interior Angles add up to 180

Angle Relationships - 20:58

The following lessons are on Geometry and Trigonometry Units

Hello.  Thank you for providing video lessons.  They could be even better with example problems worked out.  Oh, it seems that the video on law of cosine has an error.  When you showed the two alternate formulas, you used two minus signs.  I think they should be the same signs as the original.  Let me know.

Examples Please

This has helped me bring my grade up from a B to a A. It is so much fun to listen to also.

Love it!!!!

Trigonometry & Geometry Papapodcasts

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