Question

challenge activity 2.6.1: python expressions. 696532_5708404_qx3sq7 jump to level 1 the area of a circle is calculated using the formula area = (r²) * π, where r is the circles radius. given variable radius_of_circle read from input and constant pi, compute the area of a circle and assign area_of_circle with the area click here for example 1 pi = 3.14159 2 3 radius_of_circle = float(input()) 4 5 6 print(f\area of a circle: {area_of_circle:.2f}\)

Explanation:

Step1: Apply circle area formula

$area\_of\_circle = radius\_of\_circle^2 * PI$

Step2: Translate to Python code

area_of_circle = radius_of_circle * 2 PI

Answer:

Add the line area_of_circle = radius_of_circle * 2 PI at line 4 of the provided code, so the full code becomes:

1 PI = 3.14159
2
3 radius_of_circle = float(input())
4 area_of_circle = radius_of_circle ** 2 * PI
5
6 print(f"Area of a circle: {area_of_circle:.2f}")