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Move each point with the coordinates (a, b) to the location (b, -a).Equivalently, if the points are represented by a 2x1 column matrix, then pre-multiply by the matrix

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Q: How do you rotate shapes 90 degrees clockwise about the origin?
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Related questions

Why can only some shapes tessellate?

Shapes can tessellate only if a number of them can meet at a point and cover 360 degrees without overlap. For regular shapes this requires that the angles of the shape are a factor of 360 degrees. For non-regular shapes it is necessary that the angles of the shapes can be grouped so that they sum to 360 degrees.


What angles are isometric shapes drawn at?

Isometric drawings and shapes are angled to 30 degrees.


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Degrees are measuring units of shapes, such as circles.See link below.


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You can work out the rotation of shapes by identifying the transformations and the rotations.Ê The measurements of the rotation of shapes are expressed in degrees.


What is true statement about transformation?

Transformations can translate, reflect, rotate and enlarge shapes on the Cartesian plane.


What is a true statement about transformations?

Transformations can translate, reflect, rotate and enlarge shapes on the Cartesian plane.


Why do you get circle shape if you rotate any shapes?

A circle is the set of all the points that have the same distance from a given point (its center). If you rotate a shape, you rotate it in such a way that you keep any point a fixed distance from the center of rotation.


Why do some shapes tile and some shapes don't?

some shapes tile and some don't because if the side angles don't equal a factor of 360 degrees it will not tile and if the side angles do equal a factor a 360 degrees it willtile.


What do the exterior angles of shapes add up to?

The exterior angles of polygon shapes add up to 360 degrees


In which direction does a tornado spin?

Tornadoes normally rotate cyclonically in direction: - counterclockwise in the northern hemisphere - clockwise in the southern hemisphere But while large-scale storms always rotate cyclonically due to the Coriolis effect, thunderstorms and tornadoes are so small that the direct influence of the Coriolis effect is inconsequential. Supercells and tornadoes rotate cyclonically in numerical simulations even when the Coriolis effect is neglected. Low-level mesocyclones and tornadoes owe their rotation to complex processes within the supercell and ambient environment. Approximately 1% of tornadoes rotate in an anticyclonic direction. Typically, only landspouts and gustnadoes rotate anticyclonically, and usually only those which form on the anticyclonic shear side of the descending rear flank downdraft in a cyclonic supercell. However, on rare occasions, anticyclonic tornadoes form in association with the mesoanticyclone of an anticyclonic supercell, in the same manner as the typical cyclonic tornado, or as a "companion tornado," either as a satellite tornado or associated with anticyclonic eddies within a supercell.


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All 4 sided shapes each equal to 360 degrees in angles


Why do shapes have different degrees?

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