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? (Use 3.14 for .)
The circumference of the circle-shaped part of the necklace can be calculated using the formula for the circumference of a circle:
C = πd
where C is the circumference, π is approximately 3.14, and d is the diameter of the circle.
Given that the diameter of the circle-shaped part of the necklace is 5 mm, we can plug this into the formula:
C = 3.14 x 5
C = 15.7 mm
Now, since the circumference of each earring is half of the circumference of the necklace, we can find the circumference of one earring by dividing the necklace's circumference by 2:
C_earring = 15.7 / 2
C_earring = 7.85 mm
Therefore, the circumference of the circle-shaped part of one of the earrings is 7.85 mm.