Basic Shapes

Basic Shapes – Definitions, Types, Properties, List and Examples

Everything we see in the surroundings has a shape. These shapes may be rectangle, square, circle, oval, cylindrical, sphere, etc. In the day to day life, we can observe shapes in objects such as coins, boxes, photo frames, credit cards, buildings, windows, etc.  This article explains the basic shapes. It also includes shape definition, Different types of shapes, attributes such as defining attributes, non-defining attributes. You can have a better understanding of the concept by going through this article completely.

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Shape – Definition

The shape is often outlined because of the kind of item. In pure mathematics, we all know basic shapes have plane figures and solid figures.

Attributes of the Shapes

The attribute is that the property of the shape. They are two types namely 1. Defining attributes  2. Non-Defining attributes.

Defining Attributes

Defining Attributes are the properties that make it distinctive. Attributes like the number of sides, edges, vertices, and faces of a form, whether or not the form is open or closed, measurements of angles verify the form of a two-dimensional or three-dimensional object. If we have a tendency to build any amendments in these attributes it’ll change the form.

Non-Defining Attributes

Non-defining attributes are the options of the shape that aren’t required by the definition of the form. The color, overall size, and orientation area unit referred to as the non-defining attributes. The Non-Defining Attribute of a two-dimensional or three-dimensional form doesn’t outline or have an effect on the form in any means. The changes created to those attributes haven’t got any result on the form.

Plane Figures

Plane figures are Two-Dimensional shapes. They are often fabricated from straight lines, recurved lines, or each straight and recurved line. For example, squares, rectangles, triangles, and circles referred to as flat shapes.

plane figures

Properties of Shapes

Properties of Various Two-Dimensional Shapes are as follows.


It has four sides and four corners. A square could be a quadrilateral with four equal sides and 4 equal internal angles.

  • A square could be a parallelogram with 2 adjacent sides equal.
  • It is a quadrangle with all four internal angles adequate to 90° and adjacent sides equal long.
  •  In a square, the opposite sides are parallel to each other.
  • It is a rhombus with four equal angles.


It has 4 sides and 4 corners. The opposite sides of a rectangle are equal and parallel to each other.

  • The rectangle is a quadrilateral with four equal internal angles.
  • Each internal angle of a rectangle measures 90°.
  • A rectangle is known as a parallelogram if the opposite angles of a rectangle are equal.
  • In a rectangle, the diagonals bisect each other and are of the same length.


It has three sides and three vertices or corners. The region formed by a triangle is termed a triangular region.

  • The addition of all internal angles of a triangle is usually adequate to 180°. this is often referred to as the angle sum property of a triangle.
  • The side is said to be the largest side when it is opposite to the largest angle of the triangle.
  • The sum of its interior opposite angles is equal to any exterior angle of the triangle. This is known as the exterior angle property of a triangle.


It has no sides and no corners.

  •  If the circles have equal radii then the circles are said to be congruent.
  • The longest chord of a circle is considered the diameter of the circle.
  • Equal circles and equal chords have equal circumference.


  • The opposite sides are parallel and congruent.
  • Opposite angles are congruent.
  • The consecutive angles of a parallelogram are supplementary.
  • If one angle of a parallelogram is a right angle, then all angles are right angles.

Solid Figures

Three-dimensional objects are solid figures or solids. They have length, height, width. Since they have three dimensions, they have depth and take space. In real life, many objects that can be seen in our surroundings have solid figures such as laptops, ice cream, balls, etc. Some geometrical shapes like cuboid, cube, cylinder, cone, sphere, triangular prism, etc. are solid figures.

solid figures


A sphere could be a solid form, spherical in form, outlined in three-dimensional area. each point on the surface is equal to the middle.

Properties of a Sphere

  • It has one surface.
  • It has no edges or vertices
  • All points on the surface area unit constant distance from the middle.
  • It is symmetrical.


A cylinder could be a solid form outlined on a three-dimensional plane. It holds 2 parallel bases, circular in form, joined by a recurved surface, at a hard and fast distance.

Properties of a Cylinder

  • It has a flat base and a flat prime. It has one recurved aspect.
  • The bases area unit is continuously congruent and parallel.
  • It is a three-dimensional object with 2 identical ends that area unit either circular or oval


It is a flat surface and a recurved surface, that informs towards the up. it’s shaped by two-line segments connected from the circular base to a typical purpose, called the vertex.

Properties of a Cone

  • It has a circular or oval base with an associate apex (vertex).
  • It has one recurved aspect.
  • A cone could be a turned triangle.

Shapes are two types. They are 1. open shapes 2. Closed shapes.

Open Shapes

An open shape is formed of line segments, however, there’s a minimum of one line section that may not be connected to something at one in every zone of its endpoints.

Closed Shapes

If a shape is closed from all the sides or a figure with no openings is termed a closed-form.

FAQs on Basic Shapes

1. What is an attribute? How many types are there?

An attribute is a property of shape. They are two types of attributes. 1. Defining Attribute  2. Non-Defining Attribute.

2. What are Two-Dimensional Objects?

The two-dimensional objects are flat plane figures that have two dimensions – length and width.

3. What are Three-Dimensional Objects?

The three-dimensional objects are solid figures that have three dimensions – length and width and height.

4. What is a Shape?

A shape is a form of an object.

5. Is the Cylinder shape a Three-Dimensional or Two-Dimensional Object?

A cylinder is a three-dimensional object and has length, width, height.

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