Naming 2D Shapes
The image below shows the names of eight 2d Shapes: Square, Triangle, Rectangle, Trapezium, Parallelogram, Rhombus, Kite and Hexagon. A Square, Rectangle, Trapezium, Parallelogram, Rhombus and Kite have four sides. A Triangle has 3 sides and a Hexagon has 6 sides. Four sided-shapes are known as quadrilaterals.
2D Shapes Key Words
2D Shapes key words include parallel, opposite, straight, adjacent, diagonal, right angle, isosceles, sides, equal, length and width. A kite for example has equal adjacent sides. Other key words include scalene, equilateral, and perpendicular. A scalene triangle has unequal sides.
2D Shapes Angle Sums
The image below shows six 2D shapes and the total sum of their angles. Find out more about this topic: polygons.
Properties of 2D Shapes
The image below shows the properties of 2D Shapes. The table includes at least two properties for each 2D shape.
A square has four equal sides and 4 lines of symmetry. A rectangle has 2 pairs of equal sides and 2 lines of symmetry. A triangle has 3 vertices, or corners. A trapezium has 4 vertices and 1 pair of parallel sides. A trapezium may have 1 line of symmetry.
A parallelogram and a rhombus have 2 pairs of parallel sides. A rhombus has 2 lines of symmetry a parallelogram has 0. The adjacent sides of a kite are equal, and a kite has 1 line of symmetry.
2D Shapes - Quadrilaterals
The image below shows quadrilaterals. Angles in quadrilaterals total to 360 degrees. A square and a rectangle contain four right angles. A rhombus and a parallelogram contain opposite angles that are equal. A kite can have a right angle and a trapezium can contain two right angles.