Question

The diameter of a circle is 3.2 meters. which is the circumference of the circle rounded to the nearest hundredth of a meter?

Answer 1

Diameter=3.2m
Radius= 3.2/2=1.6m
Circumference of circle= 2*pie*r= 2*3.14*1.6=10m

Answer 2

Answer: 10.05 meters

Step-by-step explanation: To calculate the circumference of a circle we need to multiply the radius of the circumference by two time the value of pi:

circumference= C= 2π*r

The radius is half the diameter so:

r=D/2

r=3.2/2

r=1.6

C=2*3.14*1.6

C=10.05 (rounded to the nearest hundredth of a meter)