0
There are many ways you can find the radius of a cone.
The simplest way is to divide the diameter by 2.
You can also find the radius of a cone if you know its volume and height.
V = (1/3)(π)(r2)(h); V is the volume, π is pi (3.14), r is radius, h is height
(3V)/(πh) = r2
r = square root of [(3V)/(πh)]
You can also find it if you know the area of the circular base of the cone.
A = πr2; A = Area, π = pi (3.14), r = radius
r2 = A/π
r = square root of (A/π)
If you know the height and the slant height (also the hypotenuse) of the cone, then you can find the radius that way.
h2 + r2 = z2; h = height, r = radius, z = slant height
r2 = z2 - h2
r = square root of (z2 - h2)
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What happens to the volume of a cone if the radius is double and the height is unchanged?
Since the volume of a cone is proportional to the square of the radius (look at the formula), double the radius would mean four times the volume.
What is the formula for the Lateral Area of a right cone where r is the radius and s is slant height?
LA= πrsLA=piRS
A cone surmounted by a cylinder surmounted by a hemisphere find its volume hemisphere 6m in height cylinder 7m in height cone 5m in height not given the radius or diameter?
The radius IS given, since height of hemisphere = radius of hemisphere!
How do you calculate this a right circular cone is inscribed in a hemisphere so that base of cone coincides with base of hemisphere what is the ratio of the height of cone to radius of hemisphere?
Suppose the radius of the sphere is R. The base of the cone is the same as the base of the hemisphere so the radius of the base of the cone is also R. The apex of the cone is on the surface of the hemisphere above the centre of the base. That is, it is at the "North pole" position. So the height of the cone is also the radius of the sphere = R. So the ratio is 1.
How do you find the formula of area of a circle?
pi multiplied by the radius squared
How do you find radius of cone?
Volume of a cone = 1/3*pi*radius2*height To find the radius make it the subject of the above formula.
How do you find the diameter of a cone?
the formula is one thirdx pix radius squared
How can you find the volume of a cone with the same base and height?
Volume formula for a cone: 1/3*pi*radius squared*height
How do you find the missing height or radius of a cone?
you find the radius of a cone by the bottom of it or the round part
How do you calculate the surface area of a cone?
find the surface area of the cone and add it to the surface area of the base so the formula would be pi radius s plus pi radius squared
What is the formula for radius of a cone?
The formula for radius of a cone is radius is equals to square root of volume times 3, which is divided by height times pie. Pie refers to 22 divided by 7.
Where would you find the formula to calculate the volume of a cone with a 19mm diameter?
Radius of cone = 19/2 = 9.5 mm Volume = (1/3) PI r^2 h, where r is the radius and h is the height, We need to know the height of the cone to find its volume.
What is the formula to finding the perimeter of a cone?
You can't find the perimeter of a cone because it's a 3D shape, but you can find the volume; the formula is 1/3x3.14xr2xh (r= radius of the base/ h= height).
Formula for area of cone?
Curved surface area of a cone = pi*radius*slant length
How do you find the radius and the slant height of a heap of sand in the shape of cone?
the slant height of a right circular cone is the distance from any point on the circle to the apex of the cone . The slant height of a cone is given by the formula ,√r2+h2 where r is the radius of the circle and h is the height from the center of the circle to the apex of the cone.
What is the formula to find the surface area of a cone?
pi * r * s, where r is the radius of the base and s is the distance along the edge of the cone from the top to the base (not the height).
What is the formula to find the base of a cone?
the cone base formula
