Write a class that has several functions related to an Equilateral Triangle. The constructor should accept a one parameter for the length (which is the same for all 3 sides in an equilateral triangle).

class EqTri:

   def __init__(self, length=0.0):

       self.length = length

   def getArea(self):

       return (3**0.5 / 4) * self.length ** 2

   def getPerimeter(self):

       return 3 * self.length

   def __str__(self):

       return 'EqTri (Area:' + str(self.getArea()) + ')'

   def __float__(self):

       return float(self.getArea())

t = EqTri(5)

print('Area = ' + str(t.getArea()))

print('Perimeter = ' + str(t.getPerimeter()))

print(t)

print(float(t))

Explanation:

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