Question

If the file contains the line import math and your program contains the line import foo, which of the following statements could you use to access the constant pi as defined in the math module?

1) math.pi
2) foo.pi
3) import pi from math
4) import pi from foo

Answer 1

To access the constant pi from the math module, you should use the notation 'math.pi' because you have imported the entire math module with 'import math'.

Step-by-step explanation:

You are looking to access the constant pi from the math module in your program. If the file contains the line import math, the correct way to access pi is using the notation math.pi. This is because when you import math, you are importing the math module as a whole, and you need to prefix pi with the module name to access it. Therefore, the correct statement to use is option 1) math.pi. The other options are incorrect because foo does not reference the math module, and the import statements 3) and 4) are attempting to import pi directly, which is not how it was referenced in your question.