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pi*radius2 = 225*pi
Divide both sides by pi and then square root both sides:
radius = 15 units of measurement
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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
What is the equation to get the area of a circle if you have the radius?
The area of a circle is given by: pi multiplied by the square of the radius. So if the radius is 15, the area is 225pi (225 is 15 squared)
What is the circumference of a circle that has an area of 225 pie?
Area = pi x radius squaredradius = sq rt of 225 pi/pi =15C = 2pi x r = 30 pi
What is the radius of a circle if the area is 225?
The area is equal to pi times the radius squared, so dividing both sides by pi and taking the square root of both sides, we get that the radius is equal to the square root of 225/pi, or about 8.463.
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.
In a circle a 90 degrees sector has an area of 225 pie in squared What is the radius of the circle?
area = 225 pi = pi R squared/4 R = square root 900 = 30 in
How find area of a circle if diameter is 15?
pi * 225/4 Radius is 15/2 pi r2 = pi * (15/2)2 = pi * 225/4
What is the area of a circle of radius 15 cms?
It is pi x 15 x 15 = pi x 225 = 3.1415 x 225 = 706.84 square cms
A circle has a radius of 15 Find the diameter and the area?
diameter = 30 units area = 225*pi square units
How do i find circumference and area of a circle?
Circumference of a circle = 2*pi*radius or diameter*pi Area of a circle = pi*radius squared
How is pi in relation to a circle?
Pi is related to the area and the circumference of the circle. The area is Pi multiplied by the radius of the circle squared and the circumference is Pi times the diameter of the circle. if you're wondering how it works, pi is the area of a circle with radius of 1 (unit), and the circumference of a circle with a radius of ½ (unit).
What do you multiply the radius by?
circumference of a circle = 2*pi*radius area of a circle = pi*radius squared
A circle has radius r what is the formula for the area of the circle?
For a circle or radius r, the area is given by: area = {pi}r2 (ie pi times the radius squared)
