Mark the center point of the ellipse (S) and points of large axis (QR) and small axis (MN).
Connect the points and draw a parallel lines of axes.
Mark the points (M'N'Q'R ') where parallel lines inte...
Mark the center point of the ellipse (S) and points of large axis (QR) and small axis (MN).
Connect the points and draw a parallel lines of axes.
Mark the points (M'N'Q'R ') where parallel lines intersect .
Large (horizontal) axis , and each half of the vertical parallel lines divide into five equal pieces.
From the points M and N draw a straight lines to the marked pieces. Highlight the points where the straight lines intersect and the points MNQR .
Draw an ellipse.