Determining angle of rotation

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Determining angle of rotation
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Thank you, this helped so much! I was very confused about rotations but this fixed it all!

plaz
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Thank You Kahn Academy, you just saved me from getting a few maths exam questions wrong.😀

sitiveniwaqa
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because A, A', and the origin make a equiangulat triangle, the rotation is 60 degrees

yeetyeet
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How about determining rotations via math equations? I'm trying to determine rotations on a live object whose corner points positions are always known. The axis of rotation will be the average of the four corner points position.

headcrab
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U helped me ur method is so simple thanks

i-am-njosh
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Mine is showing me the pentagon before it’s rotation, with no graph and I also don’t have options on what to pick it’s strictly on knowledge. Do you think you know how to do that

laiboo
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My question says to describe fully the transformation of triangle *P* onto triangle *Q*, they didn't state the origin, but they showed that it have been rotated

blazimove