Rotation de figures à 5 sommets -- 2 étapes (A)

Rotations (A)

Dessinez l’image finale et les ´etapes interm´ediaires de la rotation d´ecrite.

0

Rotation de 180

◦

autour du point (1, 1).

Rotation de 180

◦

autour du point (-4, -1).

-

x

6

y

`````````````````````````````````BBB B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B                                   @<sub>@</sub> @@<sub>@</sub>

Rotation de 180

◦

autour du point (5, -4).

Rotation dans le sens antihoraire de 90

◦

autour

du point (1, 0).

-

x

6

y

S S S S S S S S S S S S S S S S S EE<sub>EE</sub> EE<sub>EE</sub> EE<sub>EE</sub> EE<sub>EE</sub> E S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S!!!!!!!!!!!!!!!!!!!!!

Rotation de 180

◦

autour du point (3, 2).

Rotation de 180

◦

autour du point (2, -1).

-

x

6

y

               Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z @ @ @ @ @ @ @ @ @ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Rotation de 180

◦

autour du point (-4, 2).

Rotation dans le sens antihoraire de 90

◦

autour

du point (1, 4).

-

x

6

y

( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( (            @<sub>@</sub> @@<sub>@</sub> @<sub>@</sub> @<sub>@</sub> @@<sub>@</sub> @<sub>@</sub> @<sub>@</sub> @    

MathsLibres.com

Rotations (A) Solutions

Dessinez l’image finale et les ´etapes interm´ediaires de la rotation d´ecrite.

0

Rotation de 180

◦

autour du point (1, 1).

Rotation de 180

◦

autour du point (-4, -1).

-

x

6

y

`````````````````````````````````BBB B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B                                   @<sub>@</sub> @@<sub>@</sub> ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` BB BB BB<sub>BB</sub> BB<sub>BB</sub> BB<sub>BB</sub> BB<sub>BB</sub> BB BB<sub>BB</sub> BB<sub>BB</sub> BB<sub>BB</sub> BB<sub>BB</sub> BB<sub>B</sub>    @ @ @ @ @ `````````````````````````````````BBB B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B                                   @<sub>@</sub> @<sub>@</sub> @ x x

Rotation de 180

◦

autour du point (5, -4).

Rotation dans le sens antihoraire de 90

◦

autour

du point (1, 0).

-

x

6

y

S S S S S S S S S S S S S S S S S EE<sub>EE</sub> EE<sub>EE</sub> EE<sub>EE</sub> EE<sub>EE</sub> E S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S!!!!!!!!!!!!!!!!!!!!! S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S<sub>S</sub> S EEEE EE EE EE EE EE EE E S S S S S S S S S ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !     ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( (          L<sub>L</sub> L<sub>L</sub> L<sub>L</sub> L<sub>L</sub> L<sub>L</sub> L<sub>L</sub> L<sub>L</sub> L<sub>L</sub> L<sub>L</sub> L<sub>L</sub> L x x

Rotation de 180

◦

autour du point (3, 2).

Rotation de 180

◦

autour du point (2, -1).

-

x

6

y

               Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z @ @ @ @ @ @ @ @ @ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX         ZZ<sub>Z</sub> Z<sub>Z</sub> Z<sub>Z</sub> Z<sub>Z</sub> Z<sub>Z</sub> Z<sub>Z</sub> ZZ<sub>Z</sub> Z<sub>Z</sub> Z<sub>Z</sub> Z<sub>Z</sub> ZZ<sub>Z</sub> @<sub>@</sub> @<sub>@</sub> @<sub>@</sub> @<sub>@</sub> @ X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X                Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z @ @ @ @ @ @ @ @ @ XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX x x

Rotation de 180

◦

autour du point (-4, 2).

Rotation dans le sens antihoraire de 90

◦

autour

du point (1, 4).

-

x

6

y

( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( (            @<sub>@</sub> @@<sub>@</sub> @<sub>@</sub> @<sub>@</sub> @@<sub>@</sub> @<sub>@</sub> @<sub>@</sub> @     (((((((((((((((((((((((((      @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @                  EE EE EE EE EE EE EE EE EE EE EE EE E ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ` ZZ<sub>Z</sub> ZZZZZZ<sub>Z</sub> ZZZZZZ<sub>Z</sub> x x

MathsLibres.com