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    Attachment 699474I need help finding the centre of rotation without tracing paper, I think I know how to d o it. But could someone help me further.

    How do I rotate a shape with our tracing paper? Forgot how do to it….
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    Attachment 699476Here...
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    (Original post by SBizzy)
    Attachment 699474I need help finding the centre of rotation without tracing paper, I think I know how to d o it. But could someone help me further.

    How do I rotate a shape with our tracing paper? Forgot how do to it….
    Rotation by 180 degrees is the same as just multiplying x and y by -1.

    What level are you studying at?
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    (Original post by SBizzy)
    Attachment 699476Here...
    When you rotate a shape about a centre C, each point on the shape remains at the same distance from C, and follows an arc of a circle, with the size of the arc depending on the angle.

    In this case, each point will move through 1/2 a circle, since 180 degrees is 1/2 a circle turn.

    Does that help?
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    (Original post by DFranklin)
    Rotation by 180 degrees is the same as just multiplying x and y by -1.

    What level are you studying at?
    Gcse my bro, have a block test on monday!
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    (Original post by atsruser)
    When you rotate a shape about a centre C, each point on the shape remains at the same distance from C, and follows an arc of a circle, with the size of the arc depending on the angle.

    In this case, each point will move through 1/2 a circle, since 180 degrees is 1/2 a circle turn.

    Does that help?
    Thanks!
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    (Original post by atsruser)
    When you rotate a shape about a centre C, each point on the shape remains at the same distance from C, and follows an arc of a circle, with the size of the arc depending on the angle.

    In this case, each point will move through 1/2 a circle, since 180 degrees is 1/2 a circle turn.

    Does that help?
    When it says Describe the full transformation for e,g A onto b.. How do I find the centre of rotation, without tracing paper?
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    I know how to do it now, just remembered
 
 
 
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