the reason is because a circle is divided in 3 parts and the left overs are .14 so when you measure the ciecumference, you times the diameter by 3.14 and you get the correct answer to the question.EX: R=3.5cm D=7cm 7cm so that is why we use pi . x 3.14
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21.98
if it is the radius you can find area or circumference
The area of a circle with radius r is pi*r*r and its circumference is 2*pi*r Use the first to find r and then use that value of r in the second to find the circumference.
To find the area of a circle knowing only the circumference, you can use the formula A = (C^2) / (4π), where A is the area and C is the circumference. Square the circumference, then divide it by 4π to get the area.
Pi in math is use to find the circumference or area of a circle.
Yes it is the number u use to find the area and circumference of a circle
if it is the radius you can find area or circumference
The area of a circle with radius r is pi*r*r and its circumference is 2*pi*r Use the first to find r and then use that value of r in the second to find the circumference.
Divide the circumference by 2*pi which then will give you the radius and use pi*radius2 to find the area of the circle
Use the standard formula for the area of a circle to find out the circle's radius. Then multiply that by 2 x pi, to get the circumference.
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.
To find the area of a circle knowing only the circumference, you can use the formula A = (C^2) / (4π), where A is the area and C is the circumference. Square the circumference, then divide it by 4π to get the area.
Pi in math is use to find the circumference or area of a circle.
Circumference is what you use when finding the area of a circle.
Divide the area by pi then square root your answer which will give the radius of the circle and use 2*pi*radius to find the circumference.
Yes it is the number u use to find the area and circumference of a circle
Divide the circumference by (2 x pi) to get the radius. Then use the formula for the area of the circle.
To find the area of a circle, you would multiply the circumference by the radius and then divide by 2π (since the circumference (C) is (2πr) and the area (A) is (πr^2)). This means you can express the area in terms of the circumference as (A = \frac{C \cdot r}{2π}). However, it's simpler to directly use the formula (A = πr^2). Thus, you wouldn't multiply the circumference by a single number to find the area; instead, you would need the radius.