Question

Find the new triangle that undergoes a scale factor of 2.5 and a center of dilation at the origin.
A(-2,-2)
C(0,0)
B(2,-4)
Xmin:
-10

Xmax:
10

Ymin:
-10

Ymax:
10

Answer 1

Find the new triangle that undergoes a scale factor of 1/2 and a center of dilation at the origin


A(-8,-4)
C(2,8)
B(10,-6)
Xmin:
-10

Xmax:
10

Ymin:
-10

Ymax:
10

Answer 2

Using the lengths of the sides, find the scale factor:

Goes from ABCD to EFGH:
Goes from EFGH to ABCD:
A(-10,6)
B(-10,-2)
C(-6,-2)
D(-6,6)
E(-5,3)
F(-5,-1)
G(-3-1)
H(-3,3)

Xmin:
-10

Xmax:
10

Ymin:
-10

Ymax:
10

Answer 3

The hypotenuse of a triangle was 20 cm and the hypotenuse of the final triangle was 13.0 cm. What is the scale factor?

Answer 4

The diameter of a circle was 11 cm and the diameter of the final circle was 33 cm.

Answer 5

The two equilateral triangles below are similar (but not drawn to scale). What is the scale factor?
16 inches.
46.4 inches.
The scale factor to go from the triangle on the left to the triangle on the right is