Table of Contents
Sphere r Radius r d r d d r.
How do you find the diameter of sphere?
The diameter of a sphere can be found with the following equations: With given radius: d = 2 * r , With given diameter: d = √(A / π) , With given volume: d = ³√(6 * V / π) .
What is a sphere diameter?
The diameter of a sphere is the maximum distance between two antipodal points on the surface of the sphere.
How is diameter calculated?
How do I find the diameter from the circumference? Divide the circumference by π, or 3.14 for an estimation. And that’s it; you have the circle’s diameter.
What is a formula for a sphere?
Answer: The equation of a sphere in standard form is x2 + y2 + z2 = r2. Let us see how is it derived. Explanation: Let A (a, b, c) be a fixed point in the space, r be a positive real number and P (x, y, z ) be a moving point such that AP = r is a constant.
Do spheres have diameter?
The Diameter of a circle or sphere is equal to 2 times the Radius.
What is the formula for finding the diameter of a circle?
Radius is the length of the line segment from the center of the circle to an endpoint on the circle and diameter is twice the length of the radius of the circle. Using this definition, the formula for the diameter is D = Radius × 2.
How do you find the diameter of a circle without the radius?
If you don’t have the radius, divide the circumference of the circle by π to get the diameter. If you don’t have the radius or the circumference, divide the area of the circle by π and then find that number’s square root to get the radius. Then, you can just multiply the radius by 2 to find the circle’s diameter.
What is the volume of a ball that is 12 cm in diameter?
can you help? find the volume of a sphere that has a diameter of 12 cm. /3 r3 = 4/3 3.1416 63 = 904.78 cubic centimeters.
What is sphere with example?
The definition of a sphere is a ball shape where the surface is the same distance from the center at all points or a level of society. An example of a sphere is a globe. An example of a sphere is the upper crust or those in the highest levels of society.
Is radius half of diameter?
A radius is half the length of the diameter.
How do you find the diameter from the surface area?
Divide the area (in square units) by Pi (approximately 3.14159). Take the square root of the result (Example: 310.56). This is the radius. Now double the radius to get the diameter (Example: 621.12 meters).
What is the radius if the diameter is 12x?
≈113 . First you need to find the radius, the key term to find the radius is diameter=2⋅radius ; therefore the radius r is 122=6 inches.
What’s a diameter of a circle?
What is the diameter of a circle definition?
1 : a straight line that runs from one side of a figure and passes through the center Measure the diameter of the circle. 2 : the distance through the center of an object from one side to the other : thickness the diameter of a tree trunk. diameter. noun. di·am·e·ter | \ dī-ˈam-ət-ər \4 days ago.
How do you find the diameter with the length and width?
If you are given the area of a circle, the diameter is equal to the square root of four times the area divided by pi (diameter = √ (4 x area) / pi).
What is the formula for a Spheres volume?
The formula for the volume of a sphere is V = 4/3 πr³. See the formula used in an example where we are given the diameter of the sphere.
How do you find the volume of a 12 cm?
1 Answer V=43πr3. Where r is the radius. The diameter is 2×the radius. radius=12cm2=6cm. Plugging in this value of r. V=43π(6)3=288π cm3.
What is the volume of a basketball with a diameter of 9 inches?
v=43πr3 where r is the radius. You have the diameter, that is the double of the radius, so r=92=4.5 inches. v=43π4.53=381.69 cubic inches.
What is sphere math?
sphere, In geometry, the set of all points in three-dimensional space lying the same distance (the radius) from a given point (the centre), or the result of rotating a circle about one of its diameters.
Where can you find a sphere in real life?
Examples of sphere include: Ball. Planets. Moon. Sun. Eyeball. Orange. Marbles.
What are the 3 dimensions of a sphere?
Unlike a circle, which is a plane shape or flat shape, defined in XY plane, a sphere is defined in three dimensions, i.e. x-axis, y-axis and z-axis.
How many diameter can you draw for a circle?
infinite diameter can be drawn in a circle.
How do you find the diameter of a sphere given the surface area?
Diameter of a sphere: d = 2 * r , Surface area of a sphere: A = 4 * π * r² , Volume of a sphere: V = 4/3 * π * r³ , Surface to volume ratio of a sphere: A / V = 3 / r .
What is the diameter of a circle with area 12cm 2?
Let , r be the radius of the circle. So, the diameter of circle d=2r=12 cm (given).
How do you solve a circle equation?
The formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle.
