8. If the radius of a circle is 3 meters, then the circumference is
A.18.84
B.18.85
C.18.86
D.18.87
9. A rancher needs to put a fence around his circular pasture. The pasture is 50
feet in diameter. How many fencing does he need?
A.155
B. 157
C. 159
D. 161
10. How far does a wheel of 55 cm radius travel if it makes 200 revolutions ?
A. 69 080
B. 69 008
C. 69 800
D.69 900​