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

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)

lol

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.