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What is the radius of a circle when the area is 706.9?
The area of a circle is found by the equation pi times r2. To calculate the radius from the area we need to divide the area by pi and get the square root of the result. if we use 3.1418 as a close approximation of pi, we get 706.9 ÷ 3.1418 = 225 and the square root of 225 = 15.
The perimeter of a circle is 450 meters what is the area?
The perimeter of a circle is called the circumfernece.Circumference = Pi * d, where d is the diameter of the circle.Area = Pi * r2 , where r is the radius of the circle.=> d*Pi = 450{divide by Pi on both sides}=> d = 450/Pi{r = d/2, use substiution}=> r = 225/Pi{substitute in to Area formula}=> Area = Pi * (225/Pi)2{simplify}=> Area = 2252/PiArea of a circle with a circumference of 450m = 16114.43799m2
What is the area of a circle with the diameter of 26 using pi?
Using 3.14 as Pi the area of circle is: 530.66
How do you find a diameter of a circle?
If you have the circumference: circumference = (pi) * diameter diameter = circumference / (pi) If you have the area: area = (pi) * radius * radius radius = square_root(area / pi) radius = diameter / 2 diameter = 2 * square_root(area / pi)
How do you find the radius of a circle if you already know the area?
The area of a circle equals pi times the radius squared (A = pi*radius2) where pi is 3.1416 So the radius is the square root of the area divided by 3.1416
