The radius of a circle with an area of 380 sq inches is 11 inches.
One square foot is equal to 0.30482 = 0.09290304 square metres. Therefore, 380 square feet is equal to 380 x 0.09290304 = 35.3031552 square metres.
There are 100 centimeters to a meter. Therefore a square meter has 100 X 100 square (one meter X one meter) centimeters, or 10,000 square centimeters. 1000 square centimeters divided by 10,000 square centimeters (one square meter) equals 0.1 square meters. A meter is equal to 100 centimeters. A square meter is 100 centimeters times 100 centimeters or 10000 square centimeters. Therefore 1000 square centimeters is equal to 1000 divided by 10000 or 0.1 square meters.
You can't- that's impossible!
A = 380 square feet.
380
380
1.1579
380
95
76
380
190
345.4545
@ 1000 fps
38
4.6316