Geometry Unit 8 - Important Terms (1-4)

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Across
  1. 3. True or False: if is impossible to do trigonometry without a scientific or graphing calculator
  2. 4. the sine of one of the acute angles will always ____ the cosine of the other acute angle
  3. 7. we use the ____ ratio when the hypotenuse is not involved
  4. 10. we use the cosine ratio when we are working with a side ________ to the angle in question and the hypotenuse
  5. 13. to round solutions to the nearest ____ we must include two numbers to the right of the decimal point
  6. 15. we use _____ when we are working with an angle and two sides
Down
  1. 1. we use the ________ theorem when we are only working with side lengths
  2. 2. the _____ trig functions are used when we need to solve for the value of an angle
  3. 5. in a right triangle the _____ are always shorter than the hypotenuse
  4. 6. we use the _____ ratio when we are working with a side opposite to the angle in question and the hypotenuse
  5. 8. to solve for a missing side of a right triangle you must know one side and one _____ angle.
  6. 9. the acronym _______ can help us to remember the proper trigonometric ratios
  7. 11. when using our calculators we must make sure that the settings are always in _______ mode, not radians
  8. 12. five feet is the same as ______ inches
  9. 14. trigonometry only can be used with _____ triangles