SAT math vocab

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Across
  1. 3. the 30-60-90 and the 45-45-90, are two types of _ right triangles
  2. 4. the square root of the quantity change in x squared plus the change in y squared that gives the length of a line segment
  3. 7. interior, a pair of angles formed on the inner sides of two lines intersected by a transversal
  4. 8. the name of a pair of angles that add up to a straight angle
  5. 9. the name of an angle pair that adds up to a right angle
Down
  1. 1. identity, sine of an angle squared plus cosine of the same angle squared equals 1
  2. 2. the square root of negative one is the _ number
  3. 5. interior, a pair of angles formed on the inner sides of two lines intersected by a third line (the transversal)
  4. 6. the average of the x's and the average of the y's to split a segment into two equal pieces
  5. 8. deviation, a measure of how spread out the numbers in a dataset are from their average