The circle-shaped part of the necklace above has a diameter of 5 mm. The circumference of the circle-shaped part of each of the earrings is one-half the circumference of the necklace. What is the circumference of the circle-shaped part of one of the earrings?
The circumference of a circle can be calculated using the formula:
Circumference = π * diameter
For the circle-shaped part of the necklace:
Circumference = π * 5 mm = 5π mm
Since the circumference of the earrings is half the circumference of the necklace, the circumference of one earring would be:
(5π mm) / 2 = 2.5π mm