359 Videos for "angles"

Same Side Interior and Same Side Exterior Angles  Problem 2
Math › Geometry › Reasoning, Diagonals, Angles and Parallel Lines
How to find missing same side interior and same side exterior angles. 
Same Side Interior and Same Side Exterior Angles  Concept
Math › Geometry › Reasoning, Diagonals, Angles and Parallel Lines
How to describe same side interior and same side exterior angles and their special properties. 
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. 
The DoubleAngle Formulas  Problem 2
Math › Precalculus › Advanced Trigonometry
How to derive a tripleangle formula for cosine. 
Exterior Angles of a Polygon  Problem 1
Math › Geometry › Polygons
How to find the measures of the three exterior angles of a triangle in terms of a variable. 
The DoubleAngle Formulas  Problem 2
Math › Trigonometry › Advanced Trigonometry
How to derive a tripleangle formula for cosine. 
Triangle Angle Sum  Concept
Math › Geometry › Triangles
How to apply the triangle angle sum theorem. 
Angles: Types and Labeling  Concept
Math › Geometry › Geometry Building Blocks
How to label an angle and how to differentiate between acute, right, obtuse, and straight angles. 
Polygon Angle Sum  Concept
Math › Geometry › Polygons
How to derive the formula to find the sum of angles in any polygon. 
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. 
Duplicating an Angle  Problem 1
Math › Geometry › Constructions
How to duplicate an angle using a compass and straightedge. 
The DoubleAngle Formulas  Problem 1
Math › Trigonometry › Advanced Trigonometry
How to use the sine and cosine doubleangle formulas to find sin(2a) and cos(2a) when sin(a) is known. 
The DoubleAngle Formulas  Concept
Math › Trigonometry › Advanced Trigonometry
How to use the sine and cosine addition formulas to prove the doubleangle formulas. 
Duplicating an Angle  Concept
Math › Geometry › Constructions
How to duplicate an angle using a compass and straightedge. 
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. 
The DoubleAngle Formulas  Concept
Math › Precalculus › Advanced Trigonometry
How to use the sine and cosine addition formulas to prove the doubleangle formulas. 
The DoubleAngle Formulas  Problem 1
Math › Precalculus › Advanced Trigonometry
How to use the sine and cosine doubleangle formulas to find sin(2a) and cos(2a) when sin(a) is known. 
Angles  Problem 1
Math › PreAlgebra › Introductory Geometry
Name an angle with letters and classify the angles based on the degree measure 
Angle Inclination of a Line  Concept
Math › Trigonometry › Advanced Trigonometry
How to find the angle of inclination of a line. 
Angle Inclination of a Line  Concept
Math › Precalculus › Advanced Trigonometry
How to find the angle of inclination of a line.