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Knowing the area of a circle which is pi times radius squared will help you to find other properties of the circle
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∙ 6y ago
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How do you find the diamter of a circle if you know the area?
In order to find the diameter of a circle if you have the area is to rearrange the formula for the area of a circle to put diameter as the unknown, like so: PIE*d = Area of a Circle d = (Area of a Circle) / PIE Therefore if the area of your circle is 40cm, 40/PIE = 12.73cm and that's the diameter.
How do you find the area of a circle if the circumference is 10?
We know that the area of a circle is pi * r2. We also know that the circumference of a circle is pi * d. Therefore, when you know the circumference of a circle and want to know the area, divide the circumference by pi to give you the diameter of the circle, divide the diameter by 2 to give you the radius, square the radius and then multiply by pi to get the area. So, 10/pi = 3.183. 3.183/2 = 1.5915. 1.59152 = 2.533 2.533 * pi = 7.958 to 3 decimal places. The area of your circle is therefore 7.958cm2.
How do you ESTIMATE the area of a circle if you know its radius?
Area of a circle = pi multiplied by (radius squared)Pi is approximately 3.141 so do r x r x 3.141
How do you find the radius of a circle if you no the area?
You know: Area = (pi)r2 So, plug in your known values for the area and pi, then solve for r.
How can you get the radius of a circle when you know the area?
area = pi x r² So, divide the area by pi (3.14159...) and then find the square root.
What is the area of the shaded sector of a circle when the radius is 3?
0. There is no circle so no shaded area of a circle!
How do you find the radius and diameter of the circle if you know the area?
Area of Circle = pi (radius)2 So , using this formula we can find the radius and also the diameter. Diameter = 2(radius)
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
Why do you need to know the radius of a circle?
Knowing the radius of a circle is important because it helps in calculating various properties of the circle, such as its circumference, area, diameter, and also determining the length of an arc or the position of points on the circle. The radius is a fundamental measurement that allows for the understanding and analysis of the circle's geometric properties.
Why is it important to know the average tidal range for an area?
So you can know what to do in case of a flooding.
What is the Area of circle of radius 4?
The Area of a circle is Pi (r)(r) so the area of a circle with the radius of 4, would be 16pi
How do you find the circumference of a circle when you know the area?
OK, SO to find the area of a circle, you find the radius (half of the diameter), and fit it into the equation πr2=A where r equals radius and A = area. The perimeter of a circle is π multiplied by the diameter. π is ≈ 3.1415296.
