math vocab

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Across
  1. 3. Sides of a polygon or triangle that are the same length.
  2. 6. Two angles that have a common side and a common vertex (corner point), and don't overlap.
  3. 9. The total area of the surface of a three-dimensional object
  4. 11. two angles that add up to 90 degrees
  5. 14. Subtracting a given percentage of a value from the original value.
  6. 15. The ratio between the scale of a given original object and a new object.
  7. 18. the difference between the final value and the initial value, expressed in the form of a percentage.
  8. 23. a comparison of two measurements in which one of the terms has a value of 1.
  9. 24. Interest calculated as a percent of the original loan.
  10. 25. compares two values, showing if one is less than, greater than, or simply not equal to another value.
  11. 26. the comparison of two values of the same kind
  12. 27. When two lines are crossed by another line (which is called the Transversal), the angles in matching corners are called corresponding angles.
Down
  1. 1. the relative change between an old value and its new value,expressed as a percentage of the old value.
  2. 2. Money paid for the use of other money.
  3. 4. a reduction in the normal price.
  4. 5. two angles that add up to 180 degrees
  5. 7. the ratio between two directly proportional quantities
  6. 8. A drawing that shows a real object with accurate sizes reduced or enlarged by a certain amount (called the scale).
  7. 10. the steepness and direction of a line as read from left to right.
  8. 12. The total amount of money borrowed (or invested), not including any interest or dividends.
  9. 13. The angles opposite each other when two lines cross. They are always equal.
  10. 16. The chance or occurrence of a particular event is termed its probability.
  11. 17. means that two ratios or fractions are of equal value.
  12. 19. a ratio between two measurements using different units
  13. 20. A value, or values, we can put in place of a variable (such as x) that makes the equation true.
  14. 21. the amount added to the cost price of goods to cover overhead and profit.
  15. 22. compares an approximation or estimate to an exact valuein percentage terms