Definitions
Find the Scale Factor
Similar or not?
Right Triangles
Find the Missing Info
100
What is a line segment?
A set of points that has endpoints on either side.
100
1/2
100
Not similar
100
What is the Pythagorean Theorem?
a2+b2=c2
100
60
200
What is a right triangle?
A triangle with a 90 degree angle.
200
2
200
Not similar.
200
What does c represent in the Pythagorean Theorem?
The hypotenuse
200
10
300
What is a reflection?
Flipping a figure over an axis.
300
3/2
300
Similar
300
13 in
300
k = 6
400
What is a dilation?
Shrinking or enlarging a figure.
400
4
400
Similar
400
7
400
36
500
What are similar figures?
Figures are similar if there is a combination of transformations that takes one to the other.
500
The perimeter of triangle ABC is 24. This triangle is then dilated, and the perimeter of the new triangle is 30. What is the scale factor?
5/4 or 1.25
500
Similar
500
CD = 6, DB = 12. What is the length of DB?
3
500
x = 3.6 mm