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Q: In a circle the circumference and diameter vary directly Which of the following equations would allow you to find the diameter of a circle with a circumference of 154 if you know that in a second ci?

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The radius is directly related to the circumference of a circle by C=π 2R so it would get proportionately larger as the circumference grows. If you start with C=π 2R where 2R=C/π then change C to C2=3C then 2R2 becomes C2/π or 3(2R)/π

The area is measured in square units, while the circumference is measured in linear units. The two are not directly comparable. It does not make sense to compare different kinds of units, for example, which is larger: a foot or a gallon? If you just want to compare the numerical values while ignoring the units, you get different results for the same circle depending on the units of measurement you choose. The formula for the area of a circle is pi x r2. The formula for the circumference of a circle is pi x 2 x r. So, for example, if the radius is 2 cm, the area is 4 pi cm2 and the circumference is 4 pi cm, they are equal numerically. But 2 cm is the same thing as .02 m. If we use .02 m instead, we get the area is .0004 pi m2 and the circumference is .04 pi m. The circumference is numerically larger. The above example shows why it does not make sense to compare area to circumference. You get a different answer for the same circle depending on what unit of measurement you use.

The angle directly opposite the hypotenuse is always 90o in a right angle triangle and if you know the other sides you can work out the other angles using one of the three trigonometry equations. Sin, Tan or Cos then use the inverse and you will get the degree.

There are several equations; sometimes one can be more appropriate, sometimes another, depending on what data is given. For example, an equation solved for "y", i.e. of the form y = mx + b directly shows you the line's slope (which is "m") and the y-intercept (which is "b"). On the other hand, a general form of an equation of a line is ax + by = c This form is able to represent vertical lines, which can't be expressed with the slope-intercept form. There are several other equations for a line as well.

If a copyright page lists a publisher that is a division of a larger company, it is necessary to list only the company that is directly responsible for the publication of the work.

Related questions

They are directly proportional.

The circumference of a circle when divided by its diameter is the value of pi which is an irrational number.

The diameter of a circle is directly proportionate to the circumference. You can find the diameter of a circle by dividing the circumference by the value of Pi (3.14) OR you can find the circumference by multiplying Pi by the diameter. it is a line that halves a circle

The circumference of a circle increases with an increase in the radius as it is directly proportional its radius.

Circumference and diameter are directly proportional. Doubling one doubles the other, and the same applies for any multiplier.

I'm not going to directly answer the question because it sounds like a homework problem, but these equations should allow you to figure it out: Area of a circle = pi*(radius)^2 Circumference of a circle = 2*pi*radius

There are no physics equations that go directly to lacrosse from physics.

girth: (noun) the distance around something, especially a rounded form; circumference It is often applied to trees, columns, and sometimes people. A diameter is the widest distance between sides of a circle or cylinder, passing directly through the center.

yes

The circumference also doubles or trebles. The circumference is directly proportional to the radius, with the constant of proportionality = 2*pi.

Draw a line that passes through the center of the circle (if the center is not marked, you can still find it by various means of geometrical construction, if you have a compass, or by slowly pulling a ruler down through the circle and seeing where the measurement of the circle is largest). The line that passes through the center, going from one side of the circumference to the other, is the diameter. The radius is simply half the diameter and can be measured directly, with a ruler. Once you have that figure, you can calculate the circumference. The circumference is equal to pi times the diameter, or two pi times the radius. Pi is equal to approximately 3.1415 which is close enough for all usual purposes.

diameter

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