A square yard (sq yd or yd²) is a unit of area commonly used in the United States and a few other countries. It is defined as the area of a square with sides that each measure one yard (3 feet) in length.
In terms of square feet, one square yard is equal to 9 square feet (1 yard * 1 yard = 3 feet * 3 feet = 9 square feet).
In terms of square meters, one square yard is approximately equal to 0.836127 square meters.
Square yards are often used in various applications, including real estate, landscaping, and construction, especially in the United States where the customary system of measurements is still prevalent.
A square inch (sq in or in²) is a unit of area commonly used in the United States and other countries that use the imperial system of measurements. It is defined as the area of a square with sides that each measure one inch in length.
In terms of square centimeters, one square inch is approximately equal to 6.4516 square centimeters (cm²).
Square inches are used in various applications, especially for measuring small areas, such as the size of a sheet of paper, the dimensions of electronic devices, or the area of specific objects or surfaces in everyday life.