Circumference of a circle = 2πr
So in order to find the circumference of this circle, we need to figure out what the radius is, which we can do by setting 49π equal to πr²
49π = πr²
Like terms cancel, leaving us with:
49 = r²
Solving for r, we get:
r = -7 or r = 7
Since it doesn't make sense to have a negative radius, we can ignore r= -7 as a potential answer, so now, we can go ahead and figure out the circumference, like so:
Circumference = 2π(7)
Final Answer:
Circumference = 14π
Circumference of a circle = 2πr
So in order to find the circumference of this circle, we need to figure out what the radius is, which we can do by setting 49π equal to πr²
49π = πr²
Like terms cancel, leaving us with:
49 = r²
Solving for r, we get:
r = -7 or r = 7
Since it doesn't make sense to have a negative radius, we can ignore r= -7 as a potential answer, so now, we can go ahead and figure out the circumference, like so:
Circumference = 2π(7)
Final Answer:
Circumference = 14π
