1. Why is the following function not considered as a well-defined function?

def area(radius): result =PI * radius * radius return result

PI = 3.14

result = area(10)

print(result)

2. List the variables have local scope in the following program:

def circle_area(radius):

result =3.14 * radius * radius return result

area = circle_area(10)

print(area)

3.

List the variables have global scope in the following program:

def circle_area(radius):

result =3.14 * radius * radius return result

area = circle_area(10)

print(area)

4. Consider the following Python code. Note that line numbers are included on the left. What is the order of the execution of the program? List the line number that the program is executed in order.

1. def pow(b, p): 2. y = b ** p 3. return y 4. 5. def square(x): 6. a = pow(x, 2) 7. return a 8. 9. n = 5 10. result = square(n) 11. print(result)

5. Can you use the same name for a local variable as a global variable? Is it recommended to use the same name for a local variable as a global variable?

6. A program contains the following function definition:

def cube(x): return x*x*x

Write a statement that passes 4 as an argument to the function and assigns its return value to variable result.