๐ Point Symmetry ๐ Grade 4 โฑ 6 min
Point Symmetry: Beyond Mirror Symmetry
After mirror symmetry, it helps to learn about another type โ point symmetry, where a shape matches itself after a 180ยฐ turn.
Point symmetry โ a 180ยฐ turn
A shape has point symmetry if, after being rotated halfway around a center point, it looks exactly the same.
๐ก Anchor: the digit 8 and the letter S are symmetric around a center point โ flip them upside down and they stay the same.
Examples of point symmetry
A playing card, a two-blade propeller, some logos โ all real-life examples of point symmetry.
FAQ
How is point symmetry different from mirror symmetry?
Mirror symmetry reflects across a line, like a mirror. Point symmetry rotates around a point, with no reflection.