Is a transformation that shifts figures up, down, left or right. An example of the mapping is (x,y)->(x-3,y+4)
What is translation?
100
Know this about the angles of any two polygons, we can say that the polygons are similar.
What is corresponding angles are congruent.
100
True or False: All right triangles are similar.
What is false.
100
The minimum number of corresponding angles that must be congruent to say two triangles are similar.
What is 2?
100
True or false: if (a/b)=(c/d) then ac=bd.
What is false? ad=bc
200
It is the transformation that enlarges or reduces the size of the figure by using a scale factor, from a reference point.
What is dilation?
200
It is the value found by find the ratio of corresponding sides of two similar polygons.
What is the scale factor?
200
True or false: #10 page 517. The two triangles are similar.
What is true.
200
The SSS Similarity postulates requires this for two triangles to be similar.
What is ratios of 3 pairs of corresponding sides be equal.
200
The definition of a proportion
What are equal ratios?
300
This rigid transformation has a mapping of (x,y) => (-x,y). (Be specific)
What is reflection about the y-axis?
300
True or false: You need to check all pairs of corresponding sides for the same scale factor to check for similarity. (If you know nothing about the angles)
What is true?
300
True or false: #11 page 517. The triangles are similar.
What is false.
300
True or False: The angle in SAS Similiarity Postulate can be any corresponding angle of the two triangles.
What is false? It must be the included angle between the two pairs of corresponding sides used to find the ratio.
300
True or False: The corresponding sides are proportional to corresponding perimeters for similar figures.
What is true?
400
This transformation has the mapping (x,y) => (x-3,y-5). (Be specific)
What is translation of 5 units down and 3 units left?
400
List the corresponding angles from the given similarity statement: quadrilateral ABCD ~ quadrilateral WXYZ.
What are A and W, B and X, C and Y, D and Z?
400
True or False: #12 page 517. The triangles are similar.
What is true.
400
The name of the two similar triangles and the scale factor between them.
What is triangle MNP and triangle QRS and 3:2?
400
The solution to the proportion: (4/x)=(5/7)
What is x=28/5 ?
500
This transformation has the mapping:
(x,y) => (-y,x).
(Be specific)
What is rotation of 90 degrees counterclockwise around (0,0).
500
The scale factor between two similar polygons ABCD and WXYZis 2.5. AB corresponds to WX. AB = 10. This the value of XY
What is 25?
500
True or False: #26 page 484. The two triangles are similar
What is true
500
Page 494 #28, The value of the r, if the two triangles are similar.
What is 10? triangle EFG ~ triangle EJH
500
The geometric mean is such that
(a/x)=(x/b), where a and b are real numbers. This is the expression equal to x