Chapter 10

Chapter 10~ Two-Dimensional Figures

http://www.mathsisfun.com/definitions/two-dimensional.html

http://studyjams.scholastic.com/studyjams/jams/math/geometry/lines-of-symmetry.htm

https://learnzillion.com/lessons/2879-classify-two-dimensional-figures-by-examining-their-properties

http://www.mathsisfun.com/shape.html

http://www.math-play.com/Geometry-Math-Games.html

http://www.sheppardsoftware.com/mathgames/earlymath/shapes_shoot.htm

http://mathszone.co.uk/shape/2d-shapes/