67 Videos for "perpendicular"

Point of Concurrency  Concept
Math › Geometry › Constructions
How to define point of concurrency; how to identify the four main points of concurrency in triangles. 
Constructing an Angle Bisector  Problem 1
Math › Geometry › Constructions
How to construct a 30 degree angle. 
Constructing an Angle Bisector  Concept
Math › Geometry › Constructions
How to define and construct an angle bisector. 
Radii to Tangents  Problem 1
Math › Geometry › Circles
How to calculate the central angle formed by radii to tangents that intersect at a point outside the circle. 
Kite Properties  Problem 2
Math › Geometry › Polygons
How to find the vertex and nonvertex angles in a kite. 
Components of a Force  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to find the horizontal and vertical components of a force. 
Kite Properties  Problem 1
Math › Geometry › Polygons
How to find the angles created by the two diagonals in a kite. 
Chords and a Circle's Center  Problem 2
Math › Geometry › Circles
How to find the center of a circle given only an arc. 
Chords and a Circle's Center  Problem 3
Math › Geometry › Circles
How to find the radius of a circle when the length of a chord and its distance to the center of the circle is given. 
Constructing an Angle Bisector  Problem 2
Math › Geometry › Constructions
How to construct a 45 degree angle. 
Components of a Force  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to use the component of an object's weight parallel to the surface of an inclined plane to find the weight of the object. 
Locus and Definition of a Circle and Sphere  Problem 1
Math › Geometry › Circles
How to find the locus of points that are equidistant from the endpoints of a segment. 
Area of Kites and Rhombuses  Problem 2
Math › Geometry › Area
How to find the length of a diagonal in a kite given the area and the length of the other diagonal. 
Area of Kites and Rhombuses  Problem 3
Math › Geometry › Area
How to calculate the area of a rhombus given the length of half of the diagonals. 
The Resultant of Two Forces  Concept
Math › Precalculus › Vectors and Parametric Equations
How to find the resultant of two forces when they are parallel, opposite, or perpendicular in direction. 
Radii to Tangents  Problem 2
Math › Geometry › Circles
How to calculate a missing angle in a quadrilateral formed by two circles that are tangent but not congruent and their radii drawn to a common line of tangency. 
Lines in Polar Coordinates  Problem 1
Math › Precalculus › Polar Coordinates and Complex Numbers
How to find the polar equation of any line. 
Vectors and Planes  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find a vector and a rectangular equation for a plane given a normal vector of the plane and one point in the plane. 
Area of Kites and Rhombuses  Problem 1
Math › Geometry › Area
How to calculate the area of a kite given the lengths of the four sides and the diagonals. 
The Angle Between Planes  Problem 2
Math › Precalculus › Vectors and Parametric Equations
How to find the angle between two planes.