21 km squared
3 metres = 0.003 kilometres
1 km = 1000m Therefore 1 km2 = 10002 = 100,000m2
0.01 km².
The answer is 296.4km2
One kilometer squared equates to one million meters squared.
1 sq kilometer = 1000000 sq meters
a million.
1 Square kilometer is 10 000 000 000 square centimeters
1 square kilometer 1x1=1
21 km squared
1 sq km = 1,000,000,000,000 sq mm
3 squared is the same as saying 3 times itself which = 9. The answer to 3 squared is solved using these steps. Squared = to the second power Which is to multiply the number by its self 2 times. So 3 squared is 3 times three. So your answer is 9
The greatness of 4 squared and 3 squared is expressed by the equation: 16 - 9 which equals 7.3 squared equals 3 x 3 = 94 squared equals 4 x 4 = 1616 - 9 = 7
3 metres = 0.003 kilometres
A depth is required to answer your question. The mass of the water will be one million tonnes per metre of depth.
A kilometer is a measure of length, a squared kilometer is a square representing the area of a kilometer squared. Each side is a kilometer in length. You cant really compare the two, length and area are two different types of measurement's I suppose based on the simplicity of the question, that a square kilometer is larger.