Geometry

2. proof that lists statements and reasons in a linear, order, first to last, in columns
5. to divide into equal parts (angles, lines, etc)
7. a line segment that has both endpoints on a circle
9. a transformation that maintains the shape of a figure but multiplies its dimensions by a chosen factor
10. a transformation sequence that can include rigid transformations, dilations, or both
11. 2 angles that add up to 90 degrees
12. a diagram with fact bubbles and a conclusion bubble with justifications to prove some fact such as similar triangles
14. the number of square units needed to fill a region on a flat surface
15. the distance around a 2-dimensional exterior
16. two pairs of adjacent sides
18. used when trying to find a side of a right triangle (opposite/adjacent)

1. a point that divides a line segment into two equal parts of equal length
2. used when trying to find a side of a right triangle (opposite/adjacent)
3. a segment that connects the midpoints of any two sides of a triangle that is half the length of and parallel to the third side of the triangle
4. opposite angle of intersecting lines is equal
6. used when trying to find a side of a right triangle (adjacent/hypotenuse)
7. two shapes are congruent if there is a series of rigid transformations (reflection, rotation, translation) that maps one shape onto another
8. set of points a fixed distance from the center and is defined by a central angle
13. all four sides are congruent
17. two triangles that have all three pairs of corresponding sides that are proportional (this means that the rations of corresponding sides are equal), then the triangles are similar