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GeoGebraClasse GeoGebra
GeoGebra

M1 L15-16

Auteur :Marisa Savage, Marisa Savage, Aleksandra-Maria Vuković, Kirk Culler, Irina Boyadzhiev, vanryswt, camille_1, Mr. boyce

Bellringer

Slide the black dot on the left to change the figure. For each figure, enter the number of lines of symmetry in the yellow box.

Drag the slider to change the angle of rotation.

Select the triangle in task 2. Move the slider to adjust the angle of rotation. At what angles does it have rotational symmetry?

Select the rectangle in task 2. Move the slider to adjust the angle of rotation. At what angles does it have rotational symmetry?

Select the pentagon in task 2. Move the slider to adjust the angle of rotation. At what angles does it have rotational symmetry?

Understanding Vectors: Click and drag the vector to see how it changes the translation of triangle ABD.

Place the vector so that it starts at the origin and ends at the point (4, 2). Then, use the vector tool to draw a vector from A to A', B to B', and D to D.'

What do you notice? How can vectors be used to translate a figure?

Translating using a vector: Click and drag the vector to see how it changes the translation.

Exit Ticket: You are given rectangle ABCD. Use the point and segment tools to translate the rectangle 5 units left and 7 units down. Then, draw the vector that defines the translation.

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