Length of Rectangle given Diagonal and Obtuse Angle between Diagonals Calculator

Calculate Length of Rectangle





Formula

The formula to calculate the Length of Rectangle (l) is:

\[ l = d \cdot \sin\left(\frac{\angle d(Obtuse)}{2}\right) \]

Where:

Definition

The Length of Rectangle is any one of the pair of parallel sides which are longer than the remaining pair of parallel sides.

Diagonal of Rectangle is the length of the line joining any pair of opposite vertices of the Rectangle.

Obtuse Angle between Diagonals of Rectangle is the angle made by the diagonals of the Rectangle which is greater than 90 degrees.

How to calculate Length of Rectangle

Let's assume the following values:

Using the formula:

\[ l = 10 \cdot \sin\left(\frac{1.9198621771934}{2}\right) \]

Evaluating:

\[ l \approx 8.19152044288888 \]

The Length of Rectangle is approximately 8.19152044288888 Meters.

Conversion Chart

Diagonal (d) (Meters) Obtuse Angle (∠d(Obtuse)) (Radians) Length (l) (Meters)
8 1.5 5.453110080187
8 1.9198621771934 6.553216354311
8 2.2 7.129658880491
10 1.5 6.816387600233
10 1.9198621771934 8.191520442889
10 2.2 8.912073600614
12 1.5 8.179665120280
12 1.9198621771934 9.829824531467
12 2.2 10.694488320737