Answer:
The perimeter or circumference of a half mirror = 37.68 cm
Step-by-step explanation:
We know that the perimeter of a circular shape is called the 'circumference', with the formula
When the mirror is cut into half, the diameter gets half as well.
We know that radius = r = diameter / 2 = 12/2 = 6 cm
Thus, the perimeter of half of the mirror = C = 2πr
= 2(3.14)6
= 37.68 cm
Therefore, the perimeter or circumference of a half mirror = 37.68 cm