Geometric Figures and Their Formulas: Part 2

This page continues with more advanced geometric figures, providing formulas for perimeters, areas, and volumes. It covers both 2D and 3D shapes, offering a comprehensive overview of geometric calculations.

For 2D shapes, the page includes:

• Regular Polygon: P = n × c (where n is the number of sides and c is the side length)
• Parallelogram: P = a × 2 + B × 2
• Circle: P = 2 × π × r

Highlight: The formule périmètre cercle is particularly important as it introduces π (pi) in geometric calculations.

For 3D figures, the page provides volume formulas:

• Cube: V = c³
• Sphere: V = (4 ÷ 3) × π × r³
• Cone: V = (1 ÷ 3) × π × r² × h
• Rectangular Prism: V = h × L × l

Vocabulary: Volume (V) is the amount of three-dimensional space occupied by a solid object.

The page also includes area formulas for more complex shapes:

• Regular Polygon: A = (n × c² × a) ÷ (4 × tan(180° ÷ n))
• Parallelogram: A = B × h
• Circle: A = π × r²

Example: For a sphere with radius 3 cm, the volume would be V = (4 ÷ 3) × π × 3³ ≈ 113.1 cm³.

Lastly, the page covers volume formulas for additional 3D shapes:

• Prism: V = Ab × h (where Ab is the area of the base)
• Pyramid: V = Ab × h × (1 ÷ 3)
• Cylinder: V = Ab × h

This comprehensive overview makes the document an excellent resource for toute les formules de volumes, formules aires et volumes pdf, and tableau des aires et volumes. It provides students with a complete set of formulas for calculating perimeters, areas, and volumes of various geometric figures.