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Homothéties de figures à 3 sommets -- 3 étapes (A)

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(1)

L’Homoth´etie (A)

Dessinez l’image finale et les ´etapes interm´ediaires de l’homoth´etie d´ecrite.

0

Homoth´etie de centre (3, 4) et de rapport 2. Homoth´etie de centre (5, 1) et de rapport 1

2.

Homoth´etie de centre (-4, 3) et de rapport 4.

-

x

6

y

# # # # # # # # # # # # #

Homoth´etie de centre (4, -5) et de rapport 2. Homoth´etie de centre (5, -3) et de rapport 2. Homoth´etie de centre (-2, -1) et de rapport 3.

-

x

6

y

hhhlhllhll

Homoth´etie de centre (-1, 0) et de rapport 14. Homoth´etie de centre (-2, 4) et de rapport 12. Homoth´etie de centre (4, 1) et de rapport 3.

-

x

6

y

JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ J \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ A A A A A A A A A A A A A A A A A A A A A

Homoth´etie de centre (1, -5) et de rapport 2. Homoth´etie de centre (-3, -2) et de rapport 2. Homoth´etie de centre (0, -4) et de rapport 1

3. -

x

6

y

               

MathsLibres.com

(2)

L’Homoth´etie (A) Solutions

Dessinez l’image finale et les ´etapes interm´ediaires de l’homoth´etie d´ecrite.

0

Homoth´etie de centre (3, 4) et de rapport 2. Homoth´etie de centre (5, 1) et de rapport 1

2.

Homoth´etie de centre (-4, 3) et de rapport 4.

-

x

6

y

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # @@ @@ @ x x x

Homoth´etie de centre (4, -5) et de rapport 2. Homoth´etie de centre (5, -3) et de rapport 2. Homoth´etie de centre (-2, -1) et de rapport 3.

-

x

6

y

hhhlhllhll      hhhhhlhlhlhlhlhlhllhhl hhhhhhhhhhhhhhhhhhhhhhhchchc c c c c c c c c c c c c c c hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhchchc c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c c xx x

Homoth´etie de centre (-1, 0) et de rapport 14. Homoth´etie de centre (-2, 4) et de rapport 12. Homoth´etie de centre (4, 1) et de rapport 3.

-

x

6

y

JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ J \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ A A A A A A A A A A A A A A A A A A A A A JJ JJ JJ JJ J e e e e e A A A A A JJJJJ JJ JJ JJ JJ JJ JJ JJ JJ J e e e e e e e e e A A A A A x x x

Homoth´etie de centre (1, -5) et de rapport 2. Homoth´etie de centre (-3, -2) et de rapport 2. Homoth´etie de centre (0, -4) et de rapport 1

3. -

x

6

y

                                                                                                                  x x x

MathsLibres.com

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