[color=#0000ff][b][size=150][size=200]The following activity demonstrates a rotation of a figure around the origin (0, 0). Experiment by moving the [u]red[/u] point clockwise and counterclockwise to change the angle of rotation, and then answer the questions below.[/size][/size][/b][/color]
[size=150][size=200]Is the image [b]congruent[/b] to the preimage?[/size][/size]
[size=200]Yes, it is congruent because all the angles and all the sides are congruent.[/size]
[size=200]When the angle of rotation is 90 degrees (clockwise or counterclockwise), how far away is the image from the preimage?[/size]
[size=150][size=200]Change the angle of rotation to 180 degrees (clockwise or counterclockwise they are the same), now what do you notice about the image compared to the preimage?[/size][/size]
[size=150][color=#0000ff][b][size=200]It is two quadrants away and appears to be upside down compared to the original.[/size][/b][/color][/size]
[size=150][size=200]What do you notice about the coordinates of the preimage compared to the image when the angle of rotation is 180 degrees?[/size][/size]
[size=150][b][color=#0000ff][size=200]The coordinates are opposites, (x, y) becomes (-x, -y).[/size][/color][/b][/size]
[size=200] Fill in the Blank: A 90 degree clockwise rotation is the same as a _________ degree counterclockwise rotation.[/size]