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Square

Square Properties

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Geometry
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The perimeter of a square: To find the perimeter of a square, just add up all the lengths of the sides: The area of a square: To find the area of a square, multiply the lengths of two sides together... Another way to say this is to say "square the length of a side!" Get it? Square! The sides and angles of a square: The sides of a square are all congruent (the same length.) The angles of a square are all congruent (the same size and measure.) Remember that a 90 degree angle is called a "right angle." So, a square has four right angles. Opposite angles of a square are congruent. Opposite sides of a square are congruent. Opposite sides of a square are parallel. The diagonal of a square:

geometry formulas

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Rectangle: rectangle-image Perimeter = l + l + w + w = 2 × l + 2 × w Area = l × w Square: square-image Perimeter = s + s + s + s = 4 × s Area = s2 Parallelogram: parallelogram-image Perimeter = a + a + b + b = 2 × a + 2 × b Area = b × h Rhombus: Rhombus-image Perimeter = b + b + b + b = 4 × b Area = b × h Triangle: Triangle-image Perimeter = a + b + c Area = (b × h)/2 Trapezoid: Trapezoid-image Perimeter = a + b + c + d Trapezoid-formula-image Circle: Circle-image Perimeter = 2 × pi × r or Perimeter = pi × d Area = pi × r2 or Area = (pi × d2)/4

Algebra Help

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Algebra
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Algebra

Applying the Fundamental Concepts of Algebra An understanding of the fundamental concepts of algebra and of how those fundamental concepts may be applied is necessary in many professional and most technical careers. For engineers and scientists it is an essential requirement. The fundamental concepts of algebra are described in the preceding section of this article. How these concepts may be applied to aid in the solution of various types of mathematical problems is explained here. USING REAL NUMBERS
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