Answer:
The approximate circumference of the base = 25.12 units
Step-by-step explanation:
Perimeter of the square = 32 units
Formula for finding the perimeter of square is given by : 4 × side
⇒ 4 × side = 32
⇒ side = 8 units
The shape created by the rotating the square about a line is circle and its diameter is equal to the side of the square.
Diameter of the circle obtained by rotating = 8 units
So, radius = 4 units
Circumference of a circle, C = 2πr
⇒ C = 2 × 3.14 × 4
⇒ C = 25.12 units
Hence, the approximate circumference of the base = 25.12 units