252 Videos for "circles"

Cyclic Quadrilaterals and Parallel Lines in Circles  Problem 1
Math › Geometry › Circles
How to calculate angles in a cyclic quadrilateral given arc measures and two angle measures. 
Circumscribed and Inscribed Circles and Polygons  Concept
Math › Geometry › Constructions
How to define circumscribed and inscribed circles and polygons relative to each other. 
Equation of a Circle  Problem 1
Math › Geometry › Pythagorean Theorem
How to write the equation of a circle given the center and the radius. 
Equation of a Circle  Problem 1
Math › Trigonometry › Pythagorean Theorem
How to write the equation of a circle given the center and the radius. 
Equation of a Circle  Problem 2
Math › Geometry › Pythagorean Theorem
How to identify the center and radius of a circle given an equation. 
Regions Between Circles and Squares  Concept
Math › Geometry › Area
How to calculate the area between a square and an inscribed circle. 
Equation of a Circle  Problem 2
Math › Trigonometry › Pythagorean Theorem
How to identify the center and radius of a circle given an equation. 
Regions Between Circles and Squares  Problem 2
Math › Geometry › Area
How to calculate the area of a region formed by four quarter circles inside a square. 
Parts of a Circle  Problem 1
Math › Geometry › Geometry Building Blocks
How to classify arcs and define chords and tangents. 
Regions Between Circles and Squares  Problem 1
Math › Geometry › Area
How to calculate the area of a region formed by four circles inside a square. 
Radii to Tangents  Problem 3
Math › Geometry › Circles
How to calculate the length of a segment drawn from the center of a circle to a point outside the circle, given the length of the tangent segment to that circle. 
Parametrizing a Circle  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find parametric equations of a circle centered at (3,4) with radius 5, oriented counterclockwise. 
Circle Tic Tac Toe Fun  Concept
Math › Algebra 2 › Additional Topics
How to beat your teacher at circle tac tac toe. 
Similar Triangles in Circles and Right Triangles  Problem 1
Math › Geometry › Similarity
How to find missing side lengths of triangles in a circle. 
Similar Triangles in Circles and Right Triangles  Concept
Math › Geometry › Similarity
How to determine if two triangles in a circle are similar and how to prove that three similar triangles exist in a right triangle with an altitude. 
Area of Circles  Problem 3
Math › Geometry › Area
How to calculate the area in a problem where a rope or leash is tied to an object. 
Calculating Coordinates in the Unit Circle  Problem 2
Math › Geometry › Pythagorean Theorem
How to find the coordinates on the unit circle, given an angle of 60 degrees. 
Calculating Coordinates in the Unit Circle  Problem 2
Math › Trigonometry › Pythagorean Theorem
How to find the coordinates on the unit circle, given an angle of 60 degrees. 
Calculating Coordinates in the Unit Circle  Problem 1
Math › Geometry › Pythagorean Theorem
How to find the coordinates on the unit circle, given an angle of 225 degrees. 
Similar Triangles in Circles and Right Triangles  Problem 2
Math › Geometry › Similarity
How to find missing side lengths in a right triangle with an altitude drawn from the right angle.