IM2 Vocabulary Chapter 4

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Across
  1. 2. in a right triangle, this ration is opposite divided by hypotenuse
  2. 5. a type of diagram used to visualize multiplying expressions with out algebra tiles
  3. 7. the reciprocal of the cosine function and it "undoes" the function to find an unknown angle
  4. 8. trinomials of the form a(squared)x(squared)+2abx+b(squared)
  5. 10. the length of the adjacent side divided by the length of the hypotenuse
  6. 11. the reciprocal of the tangent function which "undoes" tangent and is used to find the unknown angle
Down
  1. 1. a set of numbers is said to be closed under an operation if the result of applying the operation to any two numbers in the set produces a number in the set
  2. 3. the reciprocal of the sine function and it "undoes" the function used to find an unknown angle
  3. 4. in a right triangle, this leg is next (connected) to an acute angle and is not hypotenuse.
  4. 6. a polynomial that can be factored as the product of the sum and difference of two terms
  5. 9. in a right triangle, this ration is opposite divided by adjacent