# BPW Inv 1.2 - Rotations

- Author:
- Andre Dayley, maddison.myers, cary.hoste

- Topic:
- Rotation

Open to page 13 in your

**BPW book**or BPW online book link to Investigation 1.2 Rotate the star around a point by completing all steps below then screen shot the final images on to your Google doc.- First choose a position on, inside or outside of the star you want to rotate around. You can make a point with or choose an existing point.
- Use the
**Rotate around Point**tool (go to then use drop down to find ) to rotate the star. - Click on
**rotate around point**tool - Then click in the middle of star (not on a point or line)
- Then click the point you created or chose in the first step, choose your angle measure and direction.
- You can use to drag point around. Screen shot your final image into your Google doc ( you can also use the export image tool in the pancake stack)

**Copy, paste and answer these questions in your google doc**:- What is the smallest counterclockwise rotation (in degrees) that will roate the star to a new position in which it looks completely unchanged?Where does each point on the star goes after the rotation? (Example A goes to G).
- Where is the image of segment AO and where is the segment HO after rotation?
- These are questions 3,4 and 5 from Part A.
- Describe the paths of points
*A*and*H*on the compass star as they “move” from their original positions to their images. - Describe the relationship among any point
*X*, its image, and the center of the compass star after the rotation in part (1) - Can you flip the compass star without changing its appearance? If so, what is the line of symmetry. You can use the
**reflect about Line**tool to do Part A 5.