144 square miles.
452.38896 square miles
334,540,800 square feet.
Miles and square miles are units of different measurements. Miles are units of length and square miles are units of area. There is no answer to your question.
Over 12 miles.
A 12-mile line has an area of 0 square miles. A 12x12 mile square area has an area of 144 square miles, if that's what you meant. When you're talking about area, you need a length and a width.
It is 12,098 square miles in area.
None, a square mile is an area measure but a mile is a linear measure with no area.
If he can see 12 miles in a complete circle, then find the area of a circle with radius of 12 miles. area of a circle = pi x radius2 = pi x 144 = 452 square miles
Pressumably, he can see 12 miles in every direction; just use the standard formula for the area of a circle, 12 miles being the radius.
If a person is able to see 12 miles on all sides, a total of 452.4 square miles can be viewed. The formula is pi x r2 = 3.1416 x 144 = 452.4.
144 miles