Use a Pencil, a string, and 2 nails (or tacks). Mount the 2 nails(or tacks) on a drawing surface. Tie a string into a loop such that it will go around the 2 nails with plenty of extra slack. Lay the string so it encircles the 2 nails. Using your pencil, place it inside the string and pull it one direction so the string loop forms a triangle between 1 nail, the other nail and the pencil point. Now move the string around the nails while keeping the string pulled tight. The pencil will trace an Ellipitcal oval shape.
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First you draw a wide oval shape then draw two straight lines that meet each other.
name with a uppercase letterbracesfor example, E = {2,4,6,8}You can also draw an oval with the numbers inside it, and the set name [E] next to the oval.
An oval is simply two circles joined at the sides by straight edges. From your x/y comments (moved to discussion) I would assume what you're trying to draw is an ellipse, which the link below describes (it also shows an oval).
The real number system can be illustrated by a Venn diagram, which looks like a number of circles or ovals which intersect or are nested. It's not possible to draw such a diagram in the WikiAnswers browser, but the following might dive the flavor: Draw a large oval which represents the integers. Inside it, draw a smaller oval to represent the whole numbers. The space between these ovals contains the negative integers. Inside the small oval draw a circle and write in it "natural numbers". Just outside the circle write a "0".
An ellipse always has two axes of reflection; an oval has one or more.So, an egg-shape is an oval, but not an ellipse.In short an ellipse is an oval, but an oval may or may not be an ellipse.