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Sunday, 25 September 2016

Shapes and solids - vocabulary

Shapes


  • Circle: a line that curves until its ends join. A ring is in the shape of a circle.
  • Oval: a line that is curved like outline of an egg
  • Square: a flat shape having four equal sides (the opposite sides are parallel) and all four internal angles of 90 degree
  • Rectangle: a flat shape having four sides (the opposite sides are parallel) and all four internal angles of 90 degree         
  • Triangle: a flat shape having three sides and three angles
  • Pentagon: a flat shape having five sides and five angles
  • Hexagon: a flat shape having six sides and six angles
  • Octagon: a flat shape having eight sides and eight angles

Shapes

Solid figures


A shape that has length, width and height is called a solid figure. The solid shape can include:
  • Cube: a solid figure having six square faces that are all equal. A cube has eight points and twelve edges.
  • Cone: a solid figure with one circular base and curved side that narrows gradually until it joins to the top called the apex.
  • Cylinder: a solid figure consisting of two circular ends and one curved side
  • Pyramid: a solid figure consisting of square base and four triangular sides that meet at the top called the apex
  • Sphere: a solid figure that is perfectly round like a ball


Solid figures