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What do you think would happen if you halved the radius of a circumference?
Wiki User
∙ 11y ago
circumference would be halved, area would be one fourth of original , andvolume would be one eighth of original.
Wiki User
∙ 11y ago
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What is the circumference if the radius is 4 m?
i think you take 4 and times it by 3.14
Of a circle which of the demensions is always the smallest?
Of circumference, diameter and radius, the radius is the smallest.You will also have other measures such as arch length and so forth but I think you're implying radius.
Why is the formula of circle 2pie r?
π was originally known (to the Greeks, I think) as the ratio of the circumference of a circle to its diameter, thus: circumference/diameter = π which with rearranging becomes: circumference = π x diameter However, the diameter of the circle is the distance from one point on its circumference to its centre and then onto another point on the circumference so it is also twice the radius in length, that is: diameter = 2 x radius which can be substituted back into the formula above to yield: circumference = π x 2 x radius or circumference = 2 x π x radius which is usually abbreviated, in algebra, to: circumference = 2πr with r representing the radius of the circle, and π the ratio as previously described.
What is the radius of a circle of 6.5 feet?
I think you are asking for the radius of a circle whose circumference is 6.5 feet. Well the circumference is 2 x pi x r and so 6.5 = 2 x 3.1415 x r r = (6.5)/(6.2830) = 1.0345 feet
What is 108 halved?
54 i think.
What is the circumference of a tablecloth if the radius is 15 inches and the tablecloth has a drop of 2inches?
With a drop all around the edge of 2 inches one can safely add that 2 inches to the radius as if you think of setting the cloth on the floor and the 2 inches would be flatly added. So..., Circumference = 2*pi*r Circumference = 2*pi*(17 inches) = 107 inches =========
What are all the points of a circle called?
There's no points, but I think you are referring to radius, diameter, circumference. Search those terms & you will be headed in the right direction.
Circumference of circle with 18 meter diameter?
if a circle has an 18 meter diameter, then it has a 9 meter radius the circumference of a circle is 2(pi)r so the c. would be 2(pi)(9) which is 18pi. (another way to think of circumference is the diameter times pi)
HELP!!What is the radius of a circle with a circumference of 12tt feet?
r = C / (pi x 2) r= 12/ (pi x 2) R= 1.9098593171 (I think)
What is the approximate circumference of a circle of radius 4cm?
The radius and circumference of a circle are related by the constant pi, no matter the size of your circle. So for this particular circle, we need to double the radius to find the diameter. (The diameter goes all the way across the circle through the center, while the radius only goes from the center to the outer edge. You can think of the diameter as two radii -- yes, that's the plural of radius -- put back-to-back.) Now that we know the diameter is 8 cm, we just have to multiply it by pi. The easiest approximation for pi to use in this sort of problem is 3.14, so 8x3.14 is 25.12.
What does a radius times 2 equal?
You can't answer that without knowing the radius. To find a radius: it is the circumference divided by 2 x 3.14159, I think. Or take the diameter and half it. So, just taking any radius and multiplying it by 2 will give you the diameter. To get a radius, you measure from the center of the circle to the edge (of any part of the circle) and that number is your radius. So, say your radius was 4 cm: 4 cm X 2 = 8 cm would be your diameter. All the Best Joseyy Or, the simpler answer to the question would be "the diameter".
About how many inches do I need to raise the headboard of a 91-inch long queen size mattress in order to get a 5 degree incline?
Think of the length of the mattress as the radius of a circle. Find the circumference of the circle from the radius. The circle is 360 degrees so the height you want to raise the mattress will be the circumference divided by 360 and then multiplied by 5. circumference = (pie) 3.14 X 91" X 2 = 571.48" 571.48" / 360 = 1.587" 1.587" X 5 = 7.935" That's pretty darn close to 8 inches.
