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What do we call the ratio of a circle's circumference to its diameter?
Wiki User
∙ 14y ago
Pi is the ratio of circumference to diameter. C/d=pi always!!!
Wiki User
∙ 14y ago
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What is the diameter of a circle with the circumference of fifty feet?
Circumference = pi X diameter so.......... diameter = circumference/pi 50 feet/pi = 15.92 feet call it 16 feet
How do you work out edge of a circle from diameter?
diameter X pi = circumference What you call edge is usually called circumference. pi = 3.1416
What is the perimeter of a circle which has a diameter of 10 cm?
In the case of a circle, it is common to call this "circumference" instead of "perimeter". Just multiply the diameter by pi.
If the radius of a circle is 8 inches what is the perimeter?
diameter x pie = circumference remember to call it circumference idk about your teachers but mine are picky answer: 50.26 (rounded)
What is the circumference of a 31 dia circle?
Circumference = 2 * Pi * rr(radius) = diameter/2 = 31/2 = 15.5Circumference = 2 * pi * 15.5= 97.4 units==========( you could call it 97 units )
What is the diameter of a circle with the circumference of fifty feet?
Circumference = pi X diameter so.......... diameter = circumference/pi 50 feet/pi = 15.92 feet call it 16 feet
How do you work out edge of a circle from diameter?
diameter X pi = circumference What you call edge is usually called circumference. pi = 3.1416
Why is the circumference alsways 3.14?
The circumference is not always 3.14 , The circumference of a circle is always (pi) times as long as the circle's diameter. (Pi) is a number that can't be exactly written down with digits, that begins with 3.14 . It's defined as the ratio of any circle's circumference to the same circle's diameter. The reason is because that's one of the properties of the thing that we call a "circle".
What is the equation for circumference?
Circumference is the specific term for the length of the perimeter of a circle. The perimeter of a circle is the circumference, and to find it, we need to know the radius or diameter of the circle. (As the diameter of a circle equals twice the radius of the circle, knowing one will mean we can know the other.) If we compare circles, we will find that all circles, regardless of their size, have something in common. The something is that all circles have in common is that the ratio between the diameter of any circle and its circumference is a constant. It's always the same for any size circle. And it's an irrational number we call pi. You've heard that, and that's what it is - a ratio. It's equal to about 3.14159 or so. (We know pi is an irrational number.) To find the circumference (c) of any circle, multiply pi (π) times its diameter (d). Or, multiply 2 times its radius (r) times pi (π). Same thing. Here are the two "versions" of the formula. c = π x d or c = 2 x π x r c equals pi times d or c equals two times pi times r. A link is provided to the Wikipedia article on circumference.
What is the perimeter of a circle which has a diameter of 10 cm?
In the case of a circle, it is common to call this "circumference" instead of "perimeter". Just multiply the diameter by pi.
If the radius of a circle is 8 inches what is the perimeter?
diameter x pie = circumference remember to call it circumference idk about your teachers but mine are picky answer: 50.26 (rounded)
What does 'pi' mean in math terms?
In math terms, pi, means 3.14, which is a everlasting decimal, that is just rounded to make your math easier. So pi, means 3.14 in math terms.
How do you use pi to find a circle's dimensions?
Pi is defined as the ratio of the circumference of a circle to the diameter of the circle.Therefore, if you measure the diameter of the circle (call it 'D') then the circumference of the circle is pi times D.To find the area of the circle use the formula Area = pi* D2 /4 .Going one step further, to a sphere, if you measure the radius of the sphere (call it R, where R is half the diameter D), then:1) The surface area of the sphere is Area = 4 * pi * R2 .2) The volume of the sphere is Volume = (4/3) * pi * R3 .
What is the circumference of a 31 dia circle?
Circumference = 2 * Pi * rr(radius) = diameter/2 = 31/2 = 15.5Circumference = 2 * pi * 15.5= 97.4 units==========( you could call it 97 units )
What is the circumference of a circle with a diameter of twenty one feet?
65.97344572538565800766 feet +/- Circumference = Pi x diameter 21 feet x 3.14159265358979323846 = 65.97344572538565800766 feet Of course Pi goes on for many many decimal places so the best we can do is round it off to a point we are satisfied with. Let's call it 65.97 feet.
What do you call the line that intersects the circle at two points?
A straight line that intersects a circle's circumference at two points will create a chord of which the circle's diameter is its largest chord.
What do you call two circles with the same radius?
congruent circles
