[list=1][*]Using the point tool, plot points A (–3, 0), B (3, 0), C (1, 1) and O (0, 0). You can change the name of a point by right-clicking it and selecting Settings.[/*][*]Create triangle ABC:[list][*]Select the polygon tool.[/*][*]Click on A, B, C then back on A.[/*][/list][/*][*]Predict the coordinates of A’, B’ and C’, after the rotation of A, B and C by 180 degrees about O.[/*][*]We are going to rotate the triangle.[list][*]Click on the Rotate around point tool. Click on point 'O'. Click inside triangle and type in angle 45. Select Clockwise and press OK. Watch the new triangle.[/*][/list][/*][*]Switch to the move tool and turn the triangle by dragging point C. Write down one observation.[/*][/list]