geometry formulas
Subject:
Geometry [1]
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