The formula for finding the circumference of a circle with radius, r, is circumference = 2π r. what is the formula for the circumference of a circle with radius r/2? a. circumference = π r/4 b. circumference = π r/2 c. circumference = π r d. circumference = 4π r

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?