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# What Is an Elongated Circle or Oval Shape Called?

**The formal term for an elongated circle or oval is an ellipse.** An ellipse resembles a squished circle that consists of one curved line, but it does not have a constant radius.

While an ellipse is a specific shape, a circle meets all the conditions to also be considered an ellipse. For a shape to be an ellipse, it must have foci. Foci are two points in an ellipse that are central to the shape. When any point on the ellipse is chosen, the sum of the distance from each foci to the point on the ellipse will always be the same.

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## What Does "congruent" Mean in Geometry?

A: In geometry, the term congruent refers to two items being the same size and shape. Congruent can be used to describe shapes, sides, segments and/or angles. Full Answer >Filed Under: -
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## How Do You Draw a Hummingbird?

A: To draw a hummingbird, first draw a circle for the head of the bird, attach an longer oval for the body to the circle, then add cigar shapes for the wings ... Full Answer >Filed Under: -
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## What Is the Way to Draw an Oval With a String?

A: To draw an ellipse or oval with a string, a person needs to pinpoint the exact measurements with a compass and pins, and move a pencil in an arc after it h... Full Answer >Filed Under: -
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## How Do You Measure Diameter?

A: If the radius of the circle is known, the diameter formula is diameter=2R, where R equals the circle's radius. If the circumference of the circle is known,... Full Answer >Filed Under: