The circle's area is 22,698 km2
the radius of a circle is half the diameter, so half of 1.8 is .9. The radius is .9km.
if it is the radius of a circle then use the formula pie r2 so the ans is 22 X 2 X 1000 --------------- 7 that is 6285.71428
The answer depends on what is 10 km: the radius, diameter, perimeter. And since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
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.
The circumference of a circle with a diameter of 16 km is: 50.3 km
The formula for area of a circle is a = πr2. If the radius is 85km, the area would be approximately 22686.5 km2.
A circle with a radius of 0.9 km has an area of 2.54 square 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: 2807.1913999999997
Using 3.14 as Pi the area of circle is: 615.44
The circumference of a circle with radius of 7 km is 44.0 km (to the nearest tenth), and the area of a circle with radius of 7 km is 153.9 km (to the nearest tenth).C = 2 pi RA = pi R2
A circle with a radius of 1.8 km has a circumference of 11.31 km
A circle with a radius of 126 km has a circumference of 791.68 km.
Area of a circle = (pi) x (square of radius) = (pi) x (5)2 = 25 pi = 78.54 square km (rounded)
It is: pi*352 = 3848.451 square km to 3 decimal places
radius = 48/2 = 24 km
The radius is 71,461 km