Basic Geometry

An introduction to the fundamental concepts of shapes, sizes, and the properties of space.

Basic Concepts

Understanding Shapes

Meet the World of Shapes

Shapes are everywhere! From the wheels on your bike to the face of your favorite clock, geometry helps us describe and understand these forms. In geometry, we study shapes by their sides, corners, and faces.

Types of Shapes

  • 2D shapes have only length and width (like a square, circle, or triangle).
  • 3D shapes have length, width, and height (like a cube, sphere, or cylinder).

Properties of Shapes

  • Sides: The straight or curved edges of a shape.
  • Vertices (Corners): The points where sides meet.
  • Faces (for 3D shapes): The flat or curved surfaces.

Why Shapes Matter

Understanding shapes helps us create art, design buildings, and even solve puzzles!

Fun Shape Facts

  • A triangle always has 3 sides and 3 corners.
  • A square has 4 equal sides and 4 right angles.

Real-World Wonders

Shapes are the building blocks of everything you see!

Examples

  • A soccer ball is made of pentagons and hexagons.

  • A slice of pizza is shaped like a triangle.

In a Nutshell

Shapes are the basic building blocks in geometry, each with unique properties.

Key Terms

Shape
A form with a specific outline, such as circles, squares, or triangles.
Vertex
A point where two or more sides meet.
Face
A flat or curved surface on a 3D shape.