Quadrilateral CrossWord Puzzle

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Across
  1. 3. of a Square The Perimeter is the distance around the edge.
  2. 6. perimeter is the distance around the edge of the triangle: just add up the three sides:
  3. 7. the Names Sometimes a triangle will have two names, for example:
  4. 9. has equal sides (marked "s") and every angle is a right angle (90°) Also opposite sides are parallel.
  5. 11. has opposite sides parallel and equal in length. Also opposite angles are equal (angles "A" are the same, and angles "B" are the same).
  6. 13. Quadrilaterals when two sides cross over, we call it a "Complex" or "Self-Intersecting" quadrilateral, like these:
  7. 14. A concave Kite is called a Dart
  8. 15. TriangleHas an angle more than 90°
Down
  1. 1. of a Square A square has two diagonals, they are equal in length and intersect in the middle.
  2. 2. is a four-sided shape where every angle is a right angle (90°). Also opposite sides are parallel and of equal length.
  3. 4. of a Square The Perimeter is 4 times the side length
  4. 5. A quadrilateral is a polygon. In fact it is a 4-sided polygon, just like a triangle is a 3-sided polygon, a pentagon is a 5-sided polygon, and so on.
  5. 8. of a Kite Multiply the lengths of the diagonals and then divide by 2 to find the Area:
  6. 10. is a four-sided shape where all sides have equal length (marked "s").
  7. 12. of a Square The Area is the side length squared: