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.

Geometric Figures and Their Formulas: Part 1

This page introduces various geometric figures and provides formulas for calculating their perimeters and areas. The information is presented in a clear, tabular format, making it easy for students to reference and understand.

Highlight: The page covers formulas for triangles, squares, rectangles, rhombuses, and trapezoids.

The perimeter formulas are presented first:

• Triangle: P = a + b + c
• Square: P = 4 × c (where c is the side length)
• Rectangle: P = 2 × l + 2 × L (where l is width and L is length)
• Rhombus: P = 4 × c
• Trapezoid: P = b + a + B + c

Vocabulary: Perimeter (P) is the distance around the outside of a shape.

Following the perimeter formulas, the page provides area formulas:

• Triangle: A = (B × h) ÷ 2
• Square: A = c²
• Rectangle: A = l × L
• Rhombus: A = (D × d) ÷ 2
• Trapezoid: A = $(b + B) × h$ ÷ 2

Definition: Area (A) is the amount of space inside the boundaries of a two-dimensional figure.

Example: For a square with side length 5 cm, the perimeter would be P = 4 × 5 = 20 cm, and the area would be A = 5² = 25 cm².

This page serves as a quick reference for formule périmètre rectangle, périmètre du carré, and aire des figures géométriques pdf, making it an invaluable resource for students studying geometry.