CROSSWORD PUZZLE

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Across
  1. 1. Branch of mathematics concerned with operation by symbolic numbers.
  2. 4. A line segment connecting two non-consecutive vertices of a polygon
  3. 5. A five sided polygon.
  4. 7. Inverse of addition
  5. 8. The number of sides of a regular polygon whose each exterior angle is 45°.
Down
  1. 1. The ____ angle of a parallelogram are supplementary.
  2. 2. A polygon which is both equiangular and equilateral is called a____ polygon
  3. 3. The _____ sides of the parallelogram are of equal in length
  4. 4. 2(x+5) =2x+10. This is an example of what property.
  5. 6. A statement formed when an equal sign is placed between two expressions.