What we learned: When you rotate figures, there is a pattern to the numbers. The first number in the coordinate pair moves to the back. The second number turns negative and slides to the first position.
For instance, if a point A is at (3,2), and 90 degree counterclockwise rotation will bring it to (-2, 3)
Tonight, complete Reteach 9.10 and practice rotating figures 90 and 180 degrees.
Need more help? Check out this tutorial.
Be a Playwright
16 years ago
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