Finding the Angle of Rotation
{"Image DocumentName": "Finding the Angle of Rotation", "Image ImageDescription": "Rotations. Lesson 9-3. Additional Examples. Finding the Angle of Rotation. A regular 12-sided polygon can be formed by stacking congruent square sheets of paper rotated about the same center on top of each other. Find the angle of rotation about M that maps W to B. Consecutive vertices of the three squares form the outline of a regular 12-sided polygon. 360 \u00f7 12 = 30, so each vertex of the polygon is a 30\u00b0 rotation about point M. You must rotate counterclockwise through 7 vertices to map point W to point B, so the angle of rotation is 7 \u2022 30\u00b0, or 210\u00b0. Quick Check. 9-3.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}