A circle with a radius of 6" is moved vertically 10" along an axis drawn through its cetner What is the vloume
96867
The formula is V = (pi) times r^2 times h  where r = radius and h = height.
440592
there are 10 centimeters in a decimeter.
676437
Almost a coicle!\nEach side would subtend an anhle of slightly more than 1.5degrees so it is very close to a circle. I don't think it has any official name.
123394
It's called the axis.
456513
A=pi*x*y \n\nwhere x is small radius from centre to circumference and y is large radius from centre to circumference.
148279
There are 360 decimeters (dm).
305755
Why not take a page from Archimedes' Eureka! moment?\n\nMeasure the density, then ask a jeweler.
297111
Think of the first as the area of a flat round plate sweeping out the inside of the figure you get from the rotation.  What will be its area? πr² where the r is the y value of √(9 + X²).  That changing area will sweep out the volume from whatever the limits are (you don't say), so it's the integral of π(√(9 + X²))², or π(9 + X²).\n\nIn the second case, the thing sweeping out the volume is the surface area of a cylinder as its radius grows.  Thats the circumfrence of the base times the height.  The circumfrence is 2πr where r is the X value and the height is the difference between Y = x and Y = X/2.  So it's the integral from 0 to 2 of:\n\n   2πX(X-X/2).\n\nThinking of an area sweeping thru the volume helps.
794061
D stand for diameter. (You'll also see equations with R - that's radius which is half of the diameter.)  It's a straight line that crosses through the center of the circle.\n\nHere's one of many, many web sites that might help you:\n\nhttp://www.mathgoodies.com/lessons/vol2/circumference.html
927299
It means "2 times pi times r" (where r is the radius of the circle)
225850
The diameter is 3476 km so it's radius is half that.  That's 1.738 x 10^6 meters.
433823
Revolving about the x-axis yields a cone whose tip is at the origin and opens in the positive x direction.  Taking discrete x slices (dx) yields a disk whose volume is given by pi*(kx)^2 dx.  Integrating from 0 to h gives us (where "S" is used as the integration symbol):\n\nV = S pi*(kx)^2 dx\n= pi * k^2 S x^2 dx\n= (pi * k^2) * (x^3)/3\n\nEvaluating from 0 to h gives us\n= (pi * k^2) * (h^3)/3 - (pi * k^2) * (0^3)/3\n= (pi * k^2 * h^3)/3
667615
I'm sorry, miscalculated\nArea of a Circle= pi r^2\n3.14 x (5)^2\n3.14 x 25\nArea of the Circle is 78.5 meters
534712
Actually sometimes. A secant passes through a circle at two points, a tangent at one. You COULD have a secant hit the tangent at a point other than the point of tangency, and there is indeed a theorem around for determining the relative lengths of lines and so forth, but many questions dealing with area and arc length put the vertex at the point of tangency for simplicity's sake.
680200
Assuming this means a circle...\n\ndefn/:\n\nc=circurmfernce\nA=area\nr=radius\nd=diameter\npi=pi (~3.1415926...)\nd=2*r\n\nC=2*pi*r=d*pi\nA=pi*(r^2)...(area is pi*r squared...pie are squared-no there not their round).\nA=pi*(d^2)/4.\n\njust plug and chug...\n\nC=10*pi.\nA=25*pi.\n\nanswer:\n\nit's that simple
1076251
It is never-ending, continuous.  It is a symbol of rebirth, of the turning of the seasons, of life.  There are many special things about the circle.  As a sphere, it is not as subject to the elements as other 3-D shapes.  Wind and water go right over or around it.
71470
3.1416 X radius squared\n12" circle= 6" radius\n6" X 6" = ? X 3.1416(pi)= ?\nGot the picture?\nNot going to do your homework for you.\n\n(sorry Lucky Lady but pi X diameter is the circumference)