Shapes, Space, and Size

Geometry is all about the properties and relationships of shapes and spaces. From triangles and circles to 3D figures, geometry helps us understand the world visually and spatially.

Key Ideas

• Points, Lines, & Angles: The basics of all geometric figures.
• Polygons: Shapes like triangles, rectangles, and pentagons.
• Circles: Understanding radius, diameter, and circumference.

Measuring Perimeter and Area

• Perimeter: The distance around a shape. For a rectangle: \( P = 2(l + w) \).
• Area: The space inside a shape. For a rectangle: \( A = l \times w \).

Measuring Volume

For a rectangular box: \( V = l \times w \times h \).

Geometry in Everyday Life

• Building and construction use geometric concepts for design and stability.
• Artists and designers use symmetry and shapes in their work.
• Even sports fields are designed using geometric principles!