8 Videos for "semicircle"

Angles in Semicircles and Chords to Tangents  Problem 1
Math › Geometry › Circles
How to find the missing angles in an angle inscribed in a semicircle. 
Angles in Semicircles and Chords to Tangents  Concept
Math › Geometry › Circles
How to prove that an angle inscribed in a semicircle is a right angle; how to solve for arcs and angles formed by a chord drawn to a point of tangency. 
Angles in Semicircles and Chords to Tangents  Problem 2
Math › Geometry › Circles
How to solve for arcs and angles formed by a chord drawn to a point of tangency. 
Angles in Semicircles and Chords to Tangents  Problem 3
Math › Geometry › Circles
How to solve for arcs and angles formed by two chords drawn to a point of tangency. 
Parametrizing a Circle  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to find parametric equations of a semicircle centered at (0,0) with radius 12, oriented counterclockwise. 
Parametrizing a Circle  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to write the parametric equations of a circle or semicircle centered at (0,0) with radius r, oriented clockwise. 
Parts of a Circle  Concept
Math › Geometry › Geometry Building Blocks
How to define a circle and identify its main parts. 
Parts of a Circle  Problem 1
Math › Geometry › Geometry Building Blocks
How to classify arcs and define chords and tangents.