Answer
Formula

where r is the radius of a circle.
As shown in the image
Diameter of the circle = 16 .3 cm

= 8.15 cm
Put in the formula

As


= 51.2 cm (approx)
Therefore the circumference of a circle is 51.2cm (approx) .
Option (D) is correct .
Answer:
1/5
Step-by-step explanation:
0.2
=2/10
=1/5
4mn. You are multiplying them all together.
Answer:
4pi r
Step-by-step explanation: