359 Videos for "angles"

Polygon Angle Sum  Problem 1
Math › Geometry › Polygons
How to find the sum of the angles when you know the number of sides of a polygon. 
Polygon Angle Sum  Problem 2
Math › Geometry › Polygons
How to find the number of sides of a polygon when you know the sum of its angles. 
Polygon Angle Sum  Problem 3
Math › Geometry › Polygons
How to apply the polygon angle sum theorem when you need to solve for x. 
Angle of Elevation and Depression  Problem 1
Math › Geometry › Basic Trigonometry
How to use an angle of depression to solve a word problem with an airplane. 
Angle of Elevation and Depression  Problem 1
Math › Trigonometry › Basic Trigonometry
How to use an angle of depression to solve a word problem with an airplane. 
Triangle Angle Sum  Problem 2
Math › Geometry › Triangles
How to apply the triangle angle sum theorem when you need to solve for x. 
Triangle Side and Angle Inequalities  Concept
Math › Geometry › Triangles
How to determine the relationship between the side inequalities and angle inequalities in a triangle. 
Radian Measure of Angles  Problem 1
Math › Trigonometry › Trigonometric Functions
How to measure a central angle of a circle when the radius and the length of the intercepted arc are given. 
Angle Bisectors and Opposite Side Ratios  Concept
Math › Geometry › Similarity
How to relate the sides of an angle bisected and the lengths of the opposite side. 
Triangle Side and Angle Inequalities  Problem 2
Math › Geometry › Triangles
How to list the sides of a triangle from longest to shortest given the measures of the interior angles. 
The HalfAngle Identities  Concept
Math › Trigonometry › Advanced Trigonometry
How to use the power reduction formulas to derive the halfangle formulas. 
The HalfAngle Identities  Problem 1
Math › Trigonometry › Advanced Trigonometry
How to use a halfangle formula to evaluate sin(/8). 
Central Angles and Intercepted Arcs  Problem 1
Math › Geometry › Circles
How to find arc measures, given the measure of its central angle measure, or find central angle measures, given congruent chords. 
Angle Inclination of a Line  Problem 1
Math › Trigonometry › Advanced Trigonometry
How to find the angle of inclination of a line. 
The HalfAngle Identities  Problem 2
Math › Trigonometry › Advanced Trigonometry
How to use a halfangle formula to evaluate cos(105). 
Angle Inclination of a Line  Problem 3
Math › Trigonometry › Advanced Trigonometry
How to find the angle of inclination of a line. 
Angle Inclination of a Line  Problem 2
Math › Trigonometry › Advanced Trigonometry
How to find the angle of inclination of a line. 
Constructing an Angle Bisector  Problem 2
Math › Geometry › Constructions
How to construct a 45 degree angle. 
Constructing an Angle Bisector  Problem 1
Math › Geometry › Constructions
How to construct a 30 degree angle. 
Angle of Elevation and Depression  Problem 1
Math › Precalculus › Basic Trigonometry
How to use an angle of depression to solve a word problem with an airplane.