Question

I need help with 2 quick questions
(questions are in comments)

Answer 1

the formula for circumference is \[2\pi r\] or 2 *3.14 * radius
your radius is half of the diameter so for this problem #1 you radius is 14 (half of 28)
now insert that into the equation

2 * 3.14 * 14 = 87.9 or if you round 88 the answer is A

same strategy for #2

2 * 3.14 * 12.5 = 78.5 or (its already rounded) then answer for #2 is C

Hope this helps! ~Bree :)

Answer 2

@flowers4547