Circumference and diameter

This task is about measuring the diameter and circumference of two objects.
This is a practical task.
Equipment needed: Clock, hoop, measuring tape.

Question 1Change answer

a)  Measure around the outside of the clock and the hoop to find the circumference of each object.
     Write your measurements in the table below.
b)  Measure straight across the clock and the hoop to find the diameter of each object.
     Write your measurements in the table below.
object circumference diameter
clock  cm  cm
hoop  cm  cm
 
c)  About how many times larger is the circumference of a circle than its diameter?