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Bookmark or Share- Rotating shapes (video) | Rotations | Khan AcademyWhile you got it backwards, positive is counterclockwise and negative is clockwise, there are rules for the basic 90 rotations given in the video, I assume they will be in rotations review. For + 90 (counterclockwise) and - 270 (clockwise) (x,y) goes to (-y,x) For + 180 or - 180 (the same) (x,y) goes to (-x,-y)
- Determining rotations (video) | Rotations | Khan AcademyWe define rotations in the counter-clockwise direction as positive and those going clockwise as negative. This is just an established convention, and if you wanted to do it the other way, you would have to restructure a fair amount of math.
- Rotation Rules (Explained w/ 16 Step-by-Step Examples!)A rotation is an isometric transformation that turns every point of a figure through a specified angle and direction about a fixed point. To describe a rotation, you need three things: Direction (clockwise CW or counterclockwise CCW) Angle in degrees. Center point of rotation (turn about what point?)
- Rotations - GCSE Maths - Steps, Examples & WorksheetRotations are transformations that turn a shape around a fixed point. To rotate a shape we need: a centre of rotation. an angle of rotation (given in degrees) a direction of rotation – either clockwise or anti-clockwise. (Anti-clockwise direction is sometimes known as counterclockwise direction). E.g.
- Geometry Rotation - Math is FunRotation. "Rotation" means turning around a center: The distance from the center to any point on the shape stays the same. Every point makes a circle around the center: Here a triangle is rotated around. the point marked with a "+" Try It Yourself. Here you can drag the pin and try different shapes:
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