What are 2D Shapes? Definition, Names, Properties, Examples (2024)

FAQs

What are 2D Shapes? Definition, Names, Properties, Examples? ›

A 2D (two-dimensional) shape can be defined as a plane figure that can be drawn on a flat surface. It has only two dimensions - length and width, with no thickness or depth. Some of the basic 2D shapes are rectangle, pentagon, quadrilateral, circle, triangles, square, octagon, and hexagon.

In maths, 2d shapes can be defined as the plane figures that can be drawn on a flat (or plane) surface or a piece of paper. All the 2d shapes have various parameters such as area and perimeter. Some of the 2d shapes contain sides and corners, whereas some have curved boundaries.

2D shapes are shapes with two dimensions, such as width and height. An example of a 2D shape is a rectangle or a circle. 2D shapes are flat and cannot be physically held, because they have no depth; a 2D shape is completely flat.

The properties of 2D shapes include sides, vertices, angles and lines of symmetry. For example: Shape. Properties. square.

What Are Two Dimensional Shapes? A two-dimensional (2D) shape can be defined as a flat figure or a shape that has two dimensions —length and width. Two dimensional or 2D shapes do not have any thickness. 2D figures can be classified on the basis of the dimensions they have.

A property of a shape refers to a characteristic that the shape has. For example, a square has four sides of equal length, four right angles, and two sets of parallel sides. These are all properties of a square.

Examples of real-life objects which are 2D shapes:

The 2D Shapes examples are: Clock – Circle or Square. Window – Square or Rectangle.

A 2D shape is a flat object. It has length and width but no height (ex: square, circle, etc.) and a 3D shape is a shape in space. It has length, width and height (ex: cube, sphere, etc.).

Examples of 2D Geometric Shapes. Two-dimensional shapes are flat figures that have width and height, but no depth. Circles, squares, triangles, and rectangles are all types of 2D geometric shapes.

2D Shapes Properties: Circles and Semi-Circles

A circle is a 2D shape that has one curved side. Circles are completely round as each point on its curved side is an equal distance from the centre of the circle. Circles have no vertices. A circle is a two-dimensional geometric shape.

What are the properties of 2D shape triangle? ›

Properties of 2D shapesProperties of triangles

2D shapes are flat, plane shapes. Triangles have three sides and three angles that add up to 180°. Quadrilaterals have four sides and four angles that add up to 360°.

2D shapes have only 2 dimensions and are flat e.g. square, rectangle, triangle, circle, pentagon, hexagon, heptagon, octagon, nonagon, decagon, parallelogram, rhombus, kite, quadrilateral, trapezium. 3D objects have three dimensions. The flat surfaces (faces) of many 3D objects are made up of 2D shapes e.g.

The definition of a side in geometry is the line segment that joins two vertices in a shape or two-dimensional figure.

Faces are the flat surface of a solid shape. For example, a cuboid (rectangular prism) has 6 faces. When thinking about 2d and 3d shapes, it is important to know that a 2d shape merely represents the face of a 3d shape.

Edges are the lines of a 2D or 3D shape. They are the lines that join the vertices (corner points) up to form shapes and faces. Although many shapes have straight lines and straight edges, there are shapes which have curved edges, such as a hemisphere.

2D Shapes Properties: Circles and Semi-Circles

A circle is a 2D shape that has one curved side. Circles are completely round as each point on its curved side is an equal distance from the centre of the circle. Circles have no vertices. A circle is a two-dimensional geometric shape.

A 2D object or shape can be said to be symmetrical if a line can be drawn through the middle so that the two halves are mirror images of each other. The line drawn through the middle is called the line of symmetry. 2D shapes like squares have four lines of symmetry and rectangles have two lines of symmetry.