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When finding area of circle in millimeters is Pi still 3.14?
3.14 is always the best 3 digit approximation of pi.
How is the area of a circle calculated?
The formula is the radius of the circle squared (multiplied by itself) times pi, which is a number that goes on forever and never repeats. Some people use 3.1415925, but it is most commonly considered as 3.14 This is most often written πr2 =Area of the circle where r is the radius of the circle. Using 3.14 as an approximation for π, we have Area=3.14 x r2
How do you find the area of a shaded circle and the area of an unshaded circle on that is inside the other circle?
To find the area of the circle pi*radius*squared and subtract the area of the figure inside
Is the circumference and area of a circle the same?
The circumference of a circle is the distance arround the edge of the circle. The area of a circle is how big the inside of the circle is.
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.
When was the area of the circle invented?
The exact area of a circle has never been worked out because the value of pi in the area of a circle which is pi times radius2 is only an approximation.
What the area of each circle. Use 3.14 as an approximation for π?
That depends on its radius which has not been given but the area of a circle is pi*radius squared
What value is closest to the area of a circle with a 3-inch radius?
The 'closest' value of the area of a 3-inch circle is: 7.06858347 square inches.
Which is closest to the what area of a circle with a diameter of 19 meters?
Area = 283.5 metres2
Which is closest to the area of a circle with a diameter of 17 meters?
Divide the diameter by 2, to get the radius. Then you can use the standard formula for the area of a circle.
Who discovered the area of the circle?
Nobody ever has because the true value of pi has never been worked out and we only use an approximation of pi when calculating the area of a circle.
What does approximation mean in maths?
It means the closest answer that you can come up with.
What is the area of a circle with a radius of 28 cm Use the approximation of 22 by 7 as pie?
Area = 22/7*282 = 2464 square cm
When finding area of circle in millimeters is Pi still 3.14?
3.14 is always the best 3 digit approximation of pi.
What is the area of a circle with a radius of 1.5 centimeters Use 3.14 as an approximation for pi?
It is: 3.14*1.52 = 7.065 square cm
How is the area of a circle calculated?
The formula is the radius of the circle squared (multiplied by itself) times pi, which is a number that goes on forever and never repeats. Some people use 3.1415925, but it is most commonly considered as 3.14 This is most often written πr2 =Area of the circle where r is the radius of the circle. Using 3.14 as an approximation for π, we have Area=3.14 x r2
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.
