Trigonometric Ratios

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Trigonometric Ratios

• SOHCAHTOA

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• Draw the triangle.
• Label the hypotenuse in H.
• Circle angle D
• Label opposite side from D O.
• Trace the adjacent side to D A.

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• Draw the triangle.
• Label the hypotenuse in H.
• Circle angle F
• Label opposite side from F O.
• Trace the adjacent side to F A.

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Sin OppositeHypotenuse
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CosineAdjacentHypotenuse
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TangentOppositeAdjacent
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Draw some conclusions

• Are the same sides the same color in both
  pictures?
• Which side is the same color?
• What made the colors different for the different
  triangles?
• Hint How were the directions different?
• Can you draw some conclusion about this?

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Find the trig. Ratio for each as a fraction.
sin A cos A tan A
sin B cos B tan B
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