Sunday, February 20, 2011
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Friday, January 30, 2009
Trig Ratios SOH CAH TOA - 20:58
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.
Angle Relationships - 20:58
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
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