Write a function named total_circle_area that accepts a list of real numbers representing the radii of the circles as a parameter and returns the sum of the areas of a group of circles, rounded to the nearest integer. Recall that the area of a circle of radius r is r 2. For example, if the list is [3.0, 1.0, 7.2, 5.5], your function should return 289. If the list is empty, return . Use Python's functional programming constrcts, such as list comprehensions, map, filter, reduce, to implement your function. Do not use any loops or recursion in your solution.