Problem 134 of 7
Which part of 2πr answers the question 'What is the radius?' in the context circumference of a circle with radius r?
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
isolate the relevant sub-expression.
Hidden until you reveal it.
Question must target a specific term, factor, or sub-expression.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Read what the question asks for: total, change, starting amount, subtotal, or rate.
2. Select the expression part that computes exactly that quantity.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Giving the whole expression when only a part is requested.