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Square number 16 as sum of gnomons. In mathematics, a square number or perfect square is an integer that is the square of an integer; [1] in other words, it is the product of some integer with itself. For example, 9 is a square number, since it equals 3 2 and can be written as 3 × 3.
The phrases "front 40" and "back 40," referring to farm fields, indicate the front and back quarter-quarter sections of land. One of the reasons for creating sections of 640 acres (260 ha) was the ease of dividing into halves and quarters while still maintaining a whole number of acres.
The square of an integer may also be called a square number or a perfect square. In algebra, the operation of squaring is often generalized to polynomials, other expressions, or values in systems of mathematical values other than the numbers. For instance, the square of the linear polynomial x + 1 is the quadratic polynomial (x + 1) 2 = x 2 ...
[40] [41] The same year, the adjacent Metropolitan Correctional Center, New York, jail opened to the east. The United States Attorney's office was also relocated from the courthouse to the jail building. [42] Although the new jail was not directly visible from Foley Square, it was connected to the courthouse via a footbridge. [43]
Another geometric proof proceeds as follows: We start with the figure shown in the first diagram below, a large square with a smaller square removed from it. The side of the entire square is a, and the side of the small removed square is b. The area of the shaded region is . A cut is made, splitting the region into two rectangular pieces, as ...
A study by the National Energy Technology Laboratory, or NETL, suggests that wastewater from two Pennsylvania regions of the Marcellus Shale could supply up to 40% of U.S. lith
The boundary markers of the original District of Columbia are the 40 milestones that marked the four lines forming the boundaries between the states of Maryland and Virginia and the square of 100 square miles (259 km 2) of federal territory that became the District of Columbia in 1801 (see: Founding of the District of Columbia).
The lot has a total area of 34,360 square feet (3,192 m 2). [2] 40 Wall Street is surrounded by several buildings, including Federal Hall and 30 Wall Street to the west; 44 Wall Street and 48 Wall Street to the east; 55 Wall Street to the southeast; 28 Liberty Street to the north; and 23 Wall Street and 15 Broad Street to the south. [10]