4. On Geogebra, draw a star that is created from three overlapping 5-pointed stars. To do this, you will need to determine which number to add repeatedly mod 15 to get this design. As with the last activity, start by using the regular polygon tool to make a regular 15 sided polygon. Change the labels on the points on the vertices to be the numbers 0-14 and use the hide tool to hide the polygon and its edges so that only the points can be seen. Make your star on these points, export it as a picture, and paste it into your homework document. Tell which number or numbers could be added repeatedly mod 15 to make the star. 4. On Geogebra, draw a star that is created from three overlapping 5-pointed stars. To do this, you will need to determine which number to add repeatedly mod 15 to get this design. As with the last activity, start by using the regular polygon tool to make a regular 15 sided polygon. Change the labels on the points on the vertices to be the numbers 0-14 and use the hide tool to hide the polygon and its edges so that only the points can be seen. Make your star on these points, export it as a picture, and paste it into your homework document. Tell which number or numbers could be added repeatedly mod 15 to make the star