Trigonometry Right Angled Triangle Requires an angle of 90 degrees - - PowerPoint PPT Presentation

trigonometry right angled triangle
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Trigonometry Right Angled Triangle Requires an angle of 90 degrees - - PowerPoint PPT Presentation

Trigonometry Right Angled Triangle Requires an angle of 90 degrees Remember: the sum of the angles of all triangles in 2D will always be 180 degrees Sine Function Sine function (sin), defined as the ratio of the side opposite the


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SLIDE 1

Trigonometry

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SLIDE 2

Right Angled Triangle

  • Requires an angle of 90

degrees

  • Remember: the sum of the

angles of all triangles in 2D will always be 180 degrees

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SLIDE 3

Sine Function

  • Sine function (sin),

defined as the ratio of the side opposite the angle to the hypotenuse.

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SLIDE 4

Cosine Function

  • Cosine function

(cos), defined as the ratio of the adjacent leg to the hypotenuse.

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SLIDE 5

Tangent Function

  • Tangent function

(tan), defined as the ratio of the opposite leg to the adjacent leg.

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SLIDE 6

Remember

  • The hypotenuse is the side opposite to the 90 degree

angle in a right triangle; it is the longest side of the triangle and one of the two sides adjacent to angle A.

  • The adjacent leg is the other side that is adjacent to

angle A.

  • The opposite side is the side that is opposite to angle A.

SOH-CAH-TOA

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SLIDE 7

Law of f sines