Insert - Ellipse

Ribbon bar. Select the Insert tab. In the Draw group, click Ellipse to draw an oval.

Classic menus. On the Insert menu, select Ellipse to draw an oval.

The cursor changes into a cross-hair, and you can draw ellipses or circles by dragging the cross-hair on the graph.

Drawing circles. Hold down the SHIFT key while drawing to produce a circle (equal height and width proportions are maintained).