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Mathematics 68 Online
sanjlop89:

ABCDEFGHIJ is a regular decagon. It rotates clockwise about its center to form the polygon A′B′C′D′E′F′G′H′I′J′. Match each angle of rotation to the point that A′ (the image of A) coincides with after that rotation.

jhonyy9:

do you can draw this decagon ? will be more understandably

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