Click on the blue translations box to begin experimenting with translations about the coordinate plane. [br]1) Move point E to (4,2)[img]data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAABGdBTUEAALGPC/xhBQAAAAtJREFUCB1jYAACAAAFAAGNu5vzAAAAAElFTkSuQmCC[/img] and point D to (10,4[img]data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAABGdBTUEAALGPC/xhBQAAAAtJREFUCB1jYAACAAAFAAGNu5vzAAAAAElFTkSuQmCC[/img]), to create a vector. How does △ABC[img]data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAABGdBTUEAALGPC/xhBQAAAAtJREFUCB1jYAACAAAFAAGNu5vzAAAAAElFTkSuQmCC[/img] transform to △A′B′C′[img]data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAABGdBTUEAALGPC/xhBQAAAAtJREFUCB1jYAACAAAFAAGNu5vzAAAAAElFTkSuQmCC[/img] as a result of this vector?
2) What do you notice about the angle measures of `△ABC` and `△A'B'C'`?
Click on the blue translations box to begin experimenting with translations about the coordinate plane.
3) How does `△ABC` transform to `△A'B'C'` given a vector?
4) What is true about the angle measures of `△ABC` and `△A'B'C'` after a translation occurs?
Click on the green reflections box to begin experimenting with reflections on the coordinate plane. [br][br]Move points D and E around the coordinate plane to see how `△ABC` is reflected about line DE.
5) What do you notice about the angle measures of `△ABC` and `△A'B'C'`?
Click on the orange rotations box to begin experimenting with rotations on the coordinate plane. [br][br]Move point E around the coordinate plane and use the rotation slider to change the angle of rotation to see how `△ABC` is rotated about point E
6) What do you notice about the angle measures of `△ABC` and `△A'B'C'`?