Special Right Triangles and Trigonometry

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Special Right Triangles and Trigonometry

• In a 45 45 90 triangle, the measure of the
  hypotenuse is v2
• Times the measure of the leg.
• av2
• a
• a
  

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Special Right Triangles and Trigonometry

• In a 30 60 90 triangle, the measure of the
  hypotenuse is twice the measure of the shorter
  leg. The measure of the longer leg is v3 times
  the measure of the shorter leg.
• 2b
• b
• bv3

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Special Right Triangles and Trigonometry

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Special Right Triangles and Trigonometry

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Trigonometric Ratios

• sin A measure of leg opposite
• measure of the hypotenuse
• cos A measure of leg adjacent
• measure of the hypotenuse
• tan A measure of leg opposite
• measure of the adjacent

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30 45 60
Sine
Cosine
Tangent
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