It would be advisable to complete Student Activities 1, 2, and 3 on Circles with Centre (0,0) and Student Activity on Circles with Centre (h,k) before attempting this interactive file. The coordinates of the points you need are all points on the grid i.e. they all have whole number coordinates. Reset the construction by clicking the icon in the top right of the screen to get a new question.
(c) Project Maths Development Team