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The Question & Answer (Q&A) Knowledge Managenet

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Table of Contents

- How do you find diameter with volume?
- How do you find the dimensions of a cylinder when given the volume?
- Does a sphere have a diameter?
- What is the length of the circle’s radius?
- What is 10ft in diameter?
- What is the diameter of 5 feet?
- How long is a 5 ft diameter circle?
- What is the area of a diameter of 5?
- What is the circumference of 5 in?

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 .

Since the volume of a cylinder formula involves the radius, you can solve for the radius and double it to find the diameter.

- Write the formula. Volume=π⋅radius2⋅height.
- Substitute the dimensions of the shape into the formula. Use 3.14 as the value for π. 791.28=3.14⋅r2⋅28.
- Solve the equation for the variable.

Enclosed volume where r is the radius and d is the diameter of the sphere. Archimedes first derived this formula by showing that the volume inside a sphere is twice the volume between the sphere and the circumscribed cylinder of that sphere (having the height and diameter equal to the diameter of the sphere).

Answer: The radius is half the length of the diameter. We will use the definition of the radius of circle. Explanation: The definition of radius of a circle is the length of the line segment from the center of a circle to a point on the circumference of the circle. So, the radius is half the length of the diameter.

Diameter of a Circle

Diameter | ft | m |
---|---|---|

10′0″ | 31.42 | 9.576 |

10′1″ | 31.68 | 9.655 |

10′2″ | 31.94 | 9.735 |

10′3″ | 32.20 | 9.815 |

When we multiply 3.1415 by 5, we get 15.7075, so the circumference of a circle with a diameter of 5 feet is approximately 15.7075 feet.

Diameter of a Circle

Diameter | ft | in |
---|---|---|

5′0″ | 15.71 | 188.5 |

5′1″ | 15.97 | 191.6 |

5′2″ | 16.23 | 194.8 |

5′3″ | 16.49 | 197.9 |

19.63 square inches (in²)

Circumference & Areas

Size in Inches | Circumference Inches | Area in Square Inches |
---|---|---|

5 | 15.710 | 19.640 |

5 1/4 | 16.490 | 21.650 |

5 1/2 | 17.280 | 23.760 |

5 3/4 | 18.060 | 25.970 |