Example 1
\(l = 8, w = 5 \rightarrow A = 8 \times 5 = 40\) units², \(P = 2(8 + 5) = 26\) units
Rechteckflächen-Rechner
Berechnen Sie Fläche und Umfang eines Rechtecks mit Länge und Breite mit detaillierter Schritt-für-Schritt-Lösung
Ergebnisse
Geben Sie Werte ein und klicken Sie auf Berechnen, um das Ergebnis zu sehen.
Theory & Formula
The area of a rectangle is the space enclosed by its four sides. It is calculated by multiplying the length by the width.
The perimeter is the total distance around the rectangle, calculated by adding all four sides or using the formula 2(l + w).
Properties
- Opposite sides are equal and parallel
- All angles are 90 degrees (right angles)
- Diagonals are equal in length and bisect each other
- A square is a special case where l = w
\(A = l \times w, P = 2(l + w)\)
Worked Examples
Example 2
\(l = 12, w = 3 \rightarrow A = 12 \times 3 = 36\) units², \(P = 2(12 + 3) = 30\) units