6362 square kilometres.
The area of Perth is approximately 5,386 square kilometers.
The total land area of Jordan is approximately 89,342 square kilometers.
The area of the farm is 2 square kilometers.
The area of Inverness, Scotland is approximately 58 square kilometers.
Wales covers an area of approximately 20,735 square kilometers or 8,006 square miles.
Area of a circle = (pi) x (square of radius) = (pi) x (5)2 = 25 pi = 78.54 square km (rounded)
314.16 square k,.
A circle with a radius of 0.9 km has an area of 2.54 square km
The surface area of Mars is approximately 144,798,500 square kilometers. The equatorial radius is about 3,396 km and the polar radius is 3,376 km.
An area of 5km radius implies a circle. The area of a circle of radius r is {pi}r2. Area ~= 3.14 x 5 x 5 km2 ~= 78.54 km2.
Using 3.14 as Pi the area of circle is: 615.44
It is: pi*352 = 3848.451 square km to 3 decimal places
It is: 4*pi*64002 square km
It is: 270/360*pi*2 squared = 3*pi square km
The Earth is only approximately spherical, not perfectly so. Its polar radius is 6,357 km while the equatorial radius is 6,378 km and a mean radius of 6,371 km. These give estimates for the distance around the Earth, at latitude 45, of between 28,243 km and 28,337 km.
Area of circle: pi*6.5^2 =132.732 square km to 3 decimal places
First of all, there is no reason to suppose that the area is circular as opposed to rectangular or triangular or some other simple or complicated shape. If, on the basis that the question asks for the radius, you assume that it is a rectangle, then the radius is 0.564 km = 564 metres.