Multiply by 2 ! A radius is half a diameter !
Circumference of a circle: 2 x pi x radius.
1407.43 units2
Radius = circumference/pi
You don't need to find it. From what your question states the area is already given to you.
To find diameter, multiply raduis by two.
Multiply by 2 ! A radius is half a diameter !
Radius (not raduis) =circumference/(2*pi)
Circumference of a circle: 2 x pi x radius.
Divide the area by pi. (3.14 or 22/7) Find the square root of your answer. This will be the radius. Multiply the raduis by 2.
Assuming that raduis = radius, the total surface area is 132 square units.
Area of a circle = pi*radius2
Surface area = 4*pi*r^2 so r = sqrt[Area/(4*pi)]
Assuming that cirlce = circle and raduis = radius, the answer is 452 sq metres.
Assuming that shere = sphere and raduis = radius, the answer is 942 square units.
113.09734 square inches
1407.43 units2