front 1 Dilation | back 1 Shrink or Enlarge |
front 2 Dc,k (x,y) | back 2 (Kx, Ky) C=center of dilation K = scale factor or constant of dilation |
front 3 Scale Factor (K =) | back 3 |
front 4 To find the center of dilation on a graph | back 4 Extend lines from corresponding vertices & where they meet is the center of dilation |
front 5 Similarity Symbol: ~ | back 5 Polygons are when corresponding angles are congruent & sides are proportional |
front 6 3 ways to prove shapes are ~ | back 6 AA~ ( 2 column proofs) SSS~ (2 proportions) SAS~ (1 proportion and the included angle) |
front 7 Midsegment | back 7 Formed by connecting the midpoints of 2 sides of a triangle. · Half the measurement of the corresponding side · Parallel to the corresponding side. |
front 8 Ratio of sides is ________________ To the ratio of the perimeter | back 8 Equal |
front 9 Ratio of sides is _________________ and then set equal to the ratio of areas | back 9 |
front 10 Ratio of sides is _________________ and then set equal to the ratio of volumes | back 10 |
front 11 | back 11 |
front 12 | back 12 |
front 13 CSSTP | back 13 |
front 14 In a proof how do you say to cross multiply? | back 14 "Cross Product Property" - In a proportion the product of the means = the product of the extremes *work backwards- when this is what you need to prove* |
front 15 Geometric Mean or mean proportional | back 15 |