104 Videos for "radius"

Circumference  Concept
Math › Geometry › Circles
How to calculate the circumference of a circle. 
The Circle  Problem 6
Math › Algebra 2 › Conic Sections
How to write the equation of a circle from a given radius and center. 
Area of Circles  Concept
Math › Geometry › Area
How to derive the formula to calculate the area of a circle. 
Volume of Spheres  Problem 1
Math › Geometry › Volume
How to calculate the volume of a hemisphere. 
Volume of Spheres  Concept
Math › Geometry › Volume
How to calculate the volume of a sphere. 
The Circle  Problem 6
Math › Precalculus › Conic Sections
How to write the equation of a circle from a given radius and center. 
Circumference  Problem 3
Math › Geometry › Circles
How to find the perimeter of a figure that appears to be a track. 
Area of a Sector  Concept
Math › Geometry › Area
How to derive the formula to calculate the area of a sector in a circle. 
Area of Circles  Problem 2
Math › Geometry › Area
How to find the circumference of a circle if the area is given. 
Area of a Segment  Concept
Math › Geometry › Area
How to derive the area of a segment formula. 
Circumference  Problem 4
Math › Geometry › Circles
How to find the circumference of a figure formed by two different circles and a straight line. 
Area of Circles  Problem 1
Math › Geometry › Area
How to calculate the area of a circle if a diameter is given. 
Area of an Annulus  Concept
Math › Geometry › Area
How to derive the formula for the area of an annulus. 
Volume of Spheres  Problem 3
Math › Geometry › Volume
How to calculate the volume of a hemisphere with a piece missing. 
Volume of Spheres  Problem 2
Math › Geometry › Volume
How to calculate the diameter of a sphere, given its volume. 
The Circle  Problem 6
Math › Precalculus › Equations of Lines, Parabolas and Circles
How to write the equation of a circle from a given radius and center. 
Equation of a Circle  Concept
Math › Trigonometry › Pythagorean Theorem
How to derive the equation for a circle using the distance formula. 
Equation of a Circle  Concept
Math › Geometry › Pythagorean Theorem
How to derive the equation for a circle using the distance formula. 
Volume of Cones  Problem 4
Math › Geometry › Volume
How to find the radius of a cone, given the volume and the height. 
Volume of Cones  Concept
Math › Geometry › Volume
How to compare the volume of a cone and a cylinder and how to calculate the volume of a cone given the radius and height.