Tuesday, August 16, 2011

Common geometry formulas




Here, we provide you with common geometry formulas for some basic shapes



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

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