radius = 16/(2*pi) = 2.546479089 inches
area = pi*2.5464790892 = 20.372 square inches rounded to 3 dp
Chat with our AI personalities
20
The diameter is 8. The circumference is 8 pi. The area is 16 pi.
If the circumference of a circle is 6.28 then its area is about 3.138 square units
A circle 16 meters in diameter has a circumference of 16*pi or about 50.26 meters.
2 inch radius = 12 9/16" circumference & an area of 12.56637 sq. inches.