If we approximate π (pi) to be 3.14
and recognize that A=πr²
r² = A/π = 31.4/3.14 = 10
...so...
r = the square root of 10 (approximately 3.16)
With that said, we would still have to designate units to go with those numbers to make it meaningful.
If the area was about 31.4 square inches then the radius would be about 3.16 inches
If the are was about 31.4 square meters, then the radius would be about 3.16 meters
... and so on.
314 sqmm
A circle with a radius of 10 meters has an area of 314 square meters.
314 feet²Area of a circle = pi x radius²let pi = 3.14A = 3.14 x 10²A = 3.14 x 100A = 314 feet²
The area of a circle equals the radius multiplied by itself, multiplied by pi. Pi rounded to the nearest hundredth is 3.14. If the radius is 10, multiply 10 by 10 and then multiply by 3.14. The area is 314. (Don't forget to write the units correctly cm2 etc)
divide the circumference by pie (3.14) and the answer would be the radius. for example circumference = 314 pie = 3.14 so 314 divide by 3.14 = 100 so the radius = 100
9.9975
314 sqmm
The area is 314 cm2
A circle with a radius of 10 meters has an area of 314 square meters.
A circle with a radius of 10 meters has an area of 314 square meters.
10 feet.
Knowing that the area of a circle is its radius squared times Pi, the area of a 10 ft radius circle is 100*Pi square ft, or about 314 square feet.
3.14*r*r=area 3.14*100=314 or 100pi
314 feet²Area of a circle = pi x radius²let pi = 3.14A = 3.14 x 10²A = 3.14 x 100A = 314 feet²
Circumference = 314 inches implies radius = 49.97 inches and so area = 7846.02 sq inches (approx).
It is: the square root of (314/pi) = 9.997 units to 3 dp
about 314