Geometry: Terms, Distance, and Midpoint

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Across
  1. 3. distance around a figure; found by adding the length of all sides of a polygon
  2. 5. formula used to find the length of a diagonal segment on a coordinate plane
  3. 7. infinite set of points; continues infinitely in both directions
  4. 9. formula for area of a ________: A=(bh)/2
  5. 12. theorem used to find the missing side of a right triangle
  6. 13. a figure formed by two rays with a common endpoint
  7. 14. formula for area of a ________: A=LW
Down
  1. 1. Notation: ||
  2. 2. having the same size, shape, and measure
  3. 3. Lines that intersect to form 4 right (90 degree) angles
  4. 4. zero-dimensional location in space
  5. 6. part of a line with two endpoints
  6. 8. formula used to find a point exactly halfway between two endpoints
  7. 10. If a segment is _______ or horizontal on a coordinate plane, find the length by counting the squares
  8. 11. infinite set of lines; two-dimensional flat surface
  9. 14. part of a line with one endpoint that extends infinitely in one direction