5 x 5 x 3.14 = 78.5
The formula is radius squared (5 x 5) timed by pi (3.14).
Chat with our AI personalities
A 16-inch circle has a diameter of 16 inches. To find the circumference, which is the distance around the circle, you can use the formula (C = \pi \times d), where (d) is the diameter. This means the circumference is approximately (50.27) inches (using (\pi \approx 3.14)).
All depends what you mean by 18 inches, is that the circumference, the diameter or the radius
you have to quote the diameter or radius or circumference of the circle to calculate the area. If diameter 78.53. If radius 314.15. If circumference 7.95
The area of a circle with an 8 inch diameter is approximately 50.27 square inches.
19.63 square inches are in the area of a 5-inch diameter circle.