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Mathematics, 28.11.2019 06:31 AnonymousLizard52303

100 its really loong

in this activity, you will explore how similarity transformations establish similarity for all circles. open the geogebra geometry tool, and complete each step below. if you need , follow these instructions for using geogebra.

start by creating two different circles:
create a point, and label it a. to make the remainder of the activity easier, choose integers for the x and y coordinates of point a.
create a circle with its center at point a and with a radius of your choice. to make the remainder of the activity easier, choose an integer value for the radius.
create another point, and label it b. to make the remainder of the activity easier, choose integers for the x and y coordinates of the point.
create a circle with its center at point b and with a radius of your choice that is different from the radius chosen for circle a. to make the remainder of the activity easier, choose an integer value for the radius.

a) take a screenshot of the two circles you created, and paste it in the space provided.

b) recall what you know about similarity. if circle b is similar to circle a, what must exist?

c) what is the difference of the x-coordinate of point a and the x-coordinate of point b?

d) in terms of rigid transformations (reflections, rotations, and translations), what does this difference represent?

e) what is the difference of the y-coordinate of point a and the y-coordinate of point b?

f) in terms of rigid transformations (reflections, rotations, and translations), what does this difference represent?

g) what is the ratio of the radius of circle a to the radius of circle b?

h) in terms of nonrigid transformations, what does this ratio represent?

i) write a sequence of dilations and translations that maps circle b onto circle a.

j) what is the relationship between circle a and circle b?

k) you have established that circles a and b are similar. what conclusion can you make about any two given circles?

l) for assurance that the similarity proof can be generalized to all circles, try more examples of creating two circles and determining the similarity transformations that map one circle onto the other circle. take a screenshot of two such circles, labeled c and d, that are different from the ones created in part a, and paste it in the space provided.

m) write a sequence of dilations and translations that maps circle d onto circle c and that shows the two triangles you created are similar.

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100 its really loong

in this activity, you will explore how similarity transformations...

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