Question

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the area of a circle is calculated using the formula $area = (r^2) * pi$, 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.
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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}\)

Explanation:

Step1: Define constant PI

$PI = 3.14159$

Step2: Get radius input

$\text{radius_of_circle} = \text{float}(\text{input}())$

Step3: Calculate circle area

$\text{area_of_circle} = \text{radius_of_circle}^2 \times PI$

Step4: Print formatted result

$\text{print}(f"\text{Area of a circle: }{\text{area_of_circle}:.2f}")$

Answer:

The corrected code to compute and print the circle's area is:

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

When run, this code will take a radius input, calculate the area using the formula $Area = r^2 \times \pi$, and output the area rounded to 2 decimal places.