Presentation on theme: "Naming shapes. Shape names you should know…. Triangles Right angled Scalene – no sides the same length. Isosceles – 2 sides and 2 angles equal. Equilateral."— Presentation transcript:
Shape names you should know…. Triangles Right angled Scalene – no sides the same length. Isosceles – 2 sides and 2 angles equal. Equilateral – all sides are equal, all angles are 60 degrees.
Quadrilaterals Square – all sides equal, each angle is 90 degrees. Rectangle – 2 pairs of sides equal lengths, each angle is 90 degrees. Rhombus – 2 pairs of parallel sides, all sides equal Parallelogram – 2 pairs of equal parallel sides. Trapezium – one pair of parallel sides Kite Arrowhead
Pentagon – 5 sides.Hexagon – six sides Other shapes…..
Angle facts Number of sidesName Number of degrees inside the shape 3Triangle180 4Quadrilateral360 5Pentagon540 6Hexagon720 7Heptagon900 8Octagon1080 9Nonagon1260 10Decagon1440
3 – D Shapes Three dimensional shapes should not be confused with two dimensional shapes. A few common three dimensional shapes are: Sphere Cube Cuboid Prism – in this case a triangular prism