geometry project

3. any straight line segment that passes through the center of the circle and whose endpoints lie on the circle
6. a type of geometrical transformation where an object is flipped to create a mirror or congruent image
9. a polygon with 4 sides and 4 vertices
10. an angle more than 90 degrees but less than 180 degrees
12. a quadrilateral that has at least one pair of parallel sides
14. a geometric transformation that moves every point of a figure, shape or space by the same distance in a given direction
15. a quadrilateral with reflectional symmetry across a diagonal

1. a triangle that has at least two sides of equal length
2. an angle equal to 90 degrees
4. a triangle in which all three sides have the same length and all three angles are equal
5. the longest side of a right triangle, across from the right angle
7. a logical argument that uses known facts like axioms, postulates, and definitions to demonstrate the truth of a given geometric statement
8. an angle less than 90 degrees
11. the covering of a surface, often a plane, using one or more geometric shapes, called tiles, with no overlaps and no gaps
13. a geometric transformation that turns a figure around a fixed point