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2. Curved mirror - Wikipedia

   en.wikipedia.org/wiki/Curved_mirror

   Convex mirror lets motorists see around a corner. Detail of the convex mirror in the Arnolfini Portrait. The passenger-side mirror on a car is typically a convex mirror. In some countries, these are labeled with the safety warning "Objects in mirror are closer than they appear", to warn the driver of the convex mirror's distorting effects on distance perception.

3. Oval - Wikipedia

   en.wikipedia.org/wiki/Oval

   An oval (from Latin ovum 'egg') is a closed curve in a plane which resembles the outline of an egg. The term is not very specific, but in some areas ( projective geometry , technical drawing , etc.) it is given a more precise definition, which may include either one or two axes of symmetry of an ellipse .

4. Spheroid - Wikipedia

   en.wikipedia.org/wiki/Spheroid

   The aspect ratio of an oblate spheroid/ellipse, c : a, is the ratio of the polar to equatorial lengths, while the flattening (also called oblateness) f, is the ratio of the equatorial-polar length difference to the equatorial length: = =.

5. Glossary of shapes with metaphorical names - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_shapes_with...

   Oval (from the Latin "ovum" for egg), a descriptive term applied to several kinds of "rounded" shapes, including the egg shape; Pear shaped, in reference to the shape of a pear, i.e., a generally rounded shape, tapered towards the top and more spherical/circular at the bottom; Rod, a 3-dimensional, solid (filled) cylinder. Rod shaped bacteria

6. Focus (geometry) - Wikipedia

   en.wikipedia.org/wiki/Focus_(geometry)

   A Cartesian oval is the set of points for each of which the weighted sum of the distances to two given foci is constant. If the weights are equal, the special case of an ellipse results. A Cassini oval is the set of points for each of which the product of the distances to two given foci is constant.

7. Why Experts Say Knowing Your Face Shape Could Change Your ...

   www.aol.com/why-experts-knowing-face-shape...

   Diamond or oblong faces tend to have areas of definition between the cheekbones, the temple, and the jawline. "You could see a diamond-shaped face, and someone else would call it an oblong face ...