Everything we observe in **our surroundings** has a form. Different fundamental shapes may be found in the objects we see around us, such as the two-dimensional square, rectangle, and oval, or the three-dimensional rectangular prism, cylinder, and sphere.

In this activity, you will find out how to identify the different basic shapes in commonly encountered objects using simple tools and techniques. You will also learn about some interesting facts related to the number of sides that various common objects have.

So, start looking around you right now and see if you can identify any common basic shapes. You should try not to use **your imagination** but rather look with your eyes only!

Here are some examples: squares, rectangles, ovals, pyramids, prisms, cylinders, spheres...

As you can see, even though these objects seem familiar they are still in fact unique in nature. Therefore, it shouldn't come as a surprise that there is no single object that can be considered a "shopping list" of basic shapes because each object contains **its own specific features** that cannot be translated into **other objects**. For example, a cube is a symmetrical object with **six identical faces**, while a dodecahedron is a highly symmetrical object with **12 identical faces**.

However, there are some objects that contain several of the same basic shape within them.

- What shapes can be found in everyday objects?
- What are the basic shapes defined?
- How are 3D shapes used in our daily lives?
- What are the 2 categories of shapes? Please explain each category.?
- How are geometric and organic shapes used to enhance drawing skills?
- What are the two art elements that we use to make forms look three-dimensional?

A shape is defined in geometry as the form of an item or its outline, outer border, or exterior surface. Shapes also include parts of **larger objects**, such as the part that lies inside a circle of any radius (a circle itself is a special case of a shape). In mathematics, a shape is any subset of Euclidean plane (or three-dimensional space) with **a given topology**.

In computer science, a shape is a set of points in some metric space, with some specified properties of the point set itself (such as connectedness or openess) or similarity relations between them (such as translation, rotation, scaling), or both. The term "shape" can also refer to the geometric object that results when such a set of points is taken on the surface of some other object (such as a planar map or electronic display).

The word "shape" comes from the Latin speculum, meaning "mirror". In geometry, the term mirror reflects **the entire collection** of concepts involved in the definition of a shape: what it is, how you would represent it using drawings or diagrams, where it would fit in relation to **other things**, etc.

Shapes are central to understanding many concepts in mathematics and physics.

We inhabit a three-dimensional universe. Each of us has a height, breadth, and length. Shapes occur in our three-dimensional environment as well: gaming dice, cuboids, donuts, pyramids, beach balls, and traffic cones. Those are all 3D forms. In fact, the only two-dimensional shape in common use is the square, which is a special case of a plane figure with four right angles. All other figures have some degree of depth.

In mathematics and physics, a shape is any three-dimensional figure bounded by **surface elements** such as points, lines, planes, or solid objects. In computer graphics, a shape is defined as **an abstract representation** of **a 2D image** or 3D model. The representation may be analytical (such as a polygon) or synthetic (such as a mesh of polygons). A shape analysis tool can be used to identify features within an image that may not be apparent to the eye alone. Common examples include circles, triangles, and lines. A shape generator takes one or more images as input and produces one or more similar images as output. Examples include fractals and kaleidoscopes.

A function is a relation between variables. In mathematics and science, a function is a relationship between a domain and a range, where the domain and range are two sets of values. Functions provide a means of mapping one set of values into another. In this sense, they are transformations, or changes of variable.

Shapes can be divided into two categories: geometric and organic. Are easily identified, such as circles, squares, and triangles Such forms are frequently seen in architecture. In addition, geometric forms are used in the design of **many produced and handcrafted objects**. Organic forms are more complex and do not contain simple geometric elements. Plants are an example of an organic form.

Geometric Shapes: These shapes are easily identifiable by **their uniformity** and regularity. They include lines, angles, and points. Circles, squares, and triangles are all examples of **geometric shapes**. They can be further divided into regular and irregular varieties. Regular shapes have identical properties in every dimension; for example, all sides of a square are equal. Irregular shapes may have some dimensions that are not exact multiples of another dimension. For example, a dodecahedron has twelve regular pentagonal faces and ten regular hexagonal edges.

Organic Shapes: These shapes are less uniform and regular. They contain parts that are similar or related to **other parts**. Trees, plants, and flowers are all examples of organic shapes. The divisions between these categories are not hard and fast, so some shapes (such as those found in natural objects) fall somewhere in between regular and geometric shapes.

Regular shapes are used in construction projects to ensure accuracy and ease of construction.

Positive shapes are those determined by objects (space). Negative forms are those defined around things (space). We can draw anything by arranging geometric and organic forms. When we separate fundamental geometric and organic shapes, even complex objects become simple to sketch. Within these basic forms, there are many variations that can be used to express ideas. Sketches based on geometry or nature contain positive and negative spaces that help define the subject.

The more we practice, the easier it will become to recognize elements of geometry and nature and to translate them into drawings. These sketches were done from observation; no reference photos were taken. The artist relied only on memory and understanding of how objects work together to create scenes.

Organic forms are those not defined by objects but rather by curves and angles. They include trees, plants, and bushes as well as animals. Organic shapes are positive forms because they are made up of lines and angles **that define space**. An artist can use organic shapes in combination with **other types** of shapes to create a variety of images including landscapes, seascapes, and still lives.

Geometric forms are those that can be described by **regular shapes** such as squares, triangles, and circles. They include buildings, vehicles, and machinery as well as their parts. Regular shapes are positive forms because they are made up of **identical parts** that define space.

Shape. A shape is defined as a two-dimensional enclosed region. Shapes are always flat by definition, but the combination of them, color, and other techniques may make shapes look three-dimensional, as forms. Texture. Material texture gives depth to an image or form. Different textures give **different effects**. Flat surfaces with no texture look like plastic; rough surfaces with **many small bumps** look like wood.

Flat colors on a dark background look dull, whereas bright colors on light backgrounds look vivid. The same principle applies to forms: flat colors on white backgrounds look boring, while bright colors on black backgrounds look fantastic.

Texture and color can be used together to create special effects. For example, you can paint a wall red and then sprinkle it with white sand for **a rougher look** than pure white or smooth concrete would have had. Or you could paint the wall red and then hang some cloth from a string frame above it for **a more decorative effect**.

The best way to understand how these techniques work is by trying them out. If you want to create a three-dimensional effect, start with shapes. You can use any tool you like for this task: pencils, pens, brushes, etc. Then add texture by drawing over the shape with something rough, such as sandpaper or gravel. Finally, add color to your image to make it livelier.