You will have a Chart Area, which is the outer boundary of the chart
(often white, maybe with a border) and a Plot Area, which is the area
in which the pie chart is shown. If you click on the outer (white)
area then you will see small squares in the corners and centre of the
edges, and you can drag these to make the Chart Area larger or
smaller, If you click in the white area just outside the pie chart
(imagine a rectangle drawn so that it touches the edges of the pie
chart - click in this part) then you will see a rectangle highlighted
with small squares at the corners. This is the Plot Area, and you can
drag those squares to enlarge the pie chart itself - up to the edges
of the Chart Area.
Hope this helps.
Pete
