Pythagorean theorem

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Across
  1. 3. measure 90 degrees
  2. 7. on the other side of something or someone
  3. 8. a polygon with three corners and three sides
  4. 9. a mathematical statement is a series of logical
  5. 11. the quantitative relation between two amounts showing the number of times one value contains
  6. 12. an angle of 90° to a given line, plane, or surface
  7. 13. a statement that the values of two mathematical expressions are equal
  8. 15. a triangle in which angles are congruent and all sides are of equal length
  9. 16. find an answer to, explanation for
Down
  1. 1. the longest side of a right triangle, opposite the right angle
  2. 2. a position to the left or right of an object
  3. 4. a statement that has been proved, or can be proved
  4. 5. the two shorter sides of the triangle
  5. 6. is a number whose square is equal to given number
  6. 10. that the sum of the squares on the legs of a right triangle
  7. 14. a mathematical relationship or rule expressed in symbols