21 square feet
The square root of 21 is 4.58257569495584.
Area of any circle = (pi) x (radius)2Radius = 1/2 of the diameterArea of the placemat = (pi) x (21)2 = 441 pi = 1,385.4 square centimeters = 0.13854 square meter
It is: 2 times the square root of 21 and it's an irrational number
plus or minus 21
Convert the feet and inches into metres and then multiply
21 square feet
area of square, formula:A=a*a or a^2plug the knownA=21*21A= 441 m^2 ;))
To convert square feet to square meters, multiply by 0.0929. So, for a 21ft x 18ft area, the calculation would be: 21 ft x 18 ft x 0.0929 = 35.15 square meters.
21 square feet (7'x3') = 1.95 square meters.
The answer would be 210 square meters.
1 meter = 100 centimeters(1 meter)2 = (100 centimeters)2(1)2 (meter)2 = (100)2 (centimeters)21 meter2 = 10,000 centimeters2
273 square feet. Multiply length by width - the result is the area in square feet.
There are 1/0.048906 = 20.45 So 20 pieces is not enough to cover 1 sq metre while 21 is. Alternatively. 20 pieces can fit in 1 sq metre but 21 will be too many.
length x width = sq ft
Square meters are a unit of area, measuring two-dimensional space, while cubic meters are a unit of volume, measuring three-dimensional space. To convert square meters to cubic meters, you need to have a third dimension such as height or depth for the conversion. If you have the height or depth measurements, you can multiply the square meters by the height or depth to get the cubic meters.
To convert 21 meters per second to mph, you can use the following conversion factors: 1 meter per second is approximately equal to 2.237 mph. Therefore, 21 meters per second is approximately 47.25 mph.