Kiyo used wire fencing to form a border around a circular region in his back yard. If the radius of the circular region was 5 yards, what was the total length of the border, rounded to the nearest tenth of a yard?
the equation the find the circumference of a circle is c=2Ï€r. c=2Ï€5 c=10Ï€ c=31.4159... the circumference of the backyard is 31.4 yards. Hope I helped...
