To determine the area of a rectangle, you can ascertain it by multiplying the length of one side by the length of another side, perpendicular to the first:

Here's an alternative explanation for calculating the area of a quadrilateral by splitting it into two triangles and using Heron's formula: When dealing with a four-sided plot, whether regular or irregular, you can partition it into two triangles. The area of each triangle can then be computed using Heron's formula, which accounts for all three side lengths:

- a, b, and c represent the lengths of the triangle's sides, and
- s is the semi-perimeter, calculated as s = (a+b+c)/2

- 1 yard (yd) = 3 feet (ft)
- 1 foot (ft) = 12 inches (in) = 30.48 centimeters (cm)
- 1 inch (in) = 2.54 centimeters (cm)
- 1 meter (m) = 100 centimeters (cm) = 39.37 inches (in) = 3.28 feet (ft)

- square foot (ft²) = 0.09 square meters (m²)
- 1 square meter (m²) = 10.76 square feet (ft²)
- 1 square yard (yd²) = 9 square feet (ft²)
- 1 cent (c) = 435.61 square feet (ft²) = 40.46 square meters (m²)
- 1 are = 100 square meters (m²)
- 1 acre = 100 cents
- 1 hectare = 2.47 acres = 100 ares