To calculate area and volume:
Area measures the size of a 2D surface. Common formulas:
- Rectangle: _Area_ = length × width
- Triangle: _Area_ = ½ × base × height
- Circle: _Area_ = π × radius²
- Rectangular prism: _Volume_ = length × width × height
- Cylinder: _Volume_ = π × radius² × height
- Sphere: _Volume_ = (4/3) × π × radius³
- Area (of the base): 4 cm × 3 cm = 12 cm²
- Volume: 4 cm × 3 cm × 2 cm = 24 cm³
- Area is for flat, 2D shapes; volume is for 3D objects.
- Use the right formula for each specific shape.
Volume measures the space inside a 3D object. Key formulas:
Example:
To find the area and volume of a rectangular box (length = 4 cm, width = 3 cm, height = 2 cm):
Key Takeaways: