269 Videos for "triangle"

Using the Pythagorean Theorem to find a Missing Hypotenuse  Problem 1
Math › Geometry › Pythagorean Theorem
How to calculate the hypotenuse in a right triangle given the lengths of the legs using the Pythagorean Theorem. 
Using the Pythagorean Theorem to find a Missing Hypotenuse  Problem 1
Math › Trigonometry › Pythagorean Theorem
How to calculate the hypotenuse in a right triangle given the lengths of the legs using the Pythagorean Theorem. 
Area With the Cross Product  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a triangle in the xyplane using vectors formed from two of its sides. 
Volume of Pyramids  Problem 2
Math › Geometry › Volume
How to find, in an equilateral triangle pyramid, the side length of the triangle, given the volume and height. 
Constructing the Orthocenter  Concept
Math › Geometry › Constructions
How to construct the orthocenter of a triangle. 
Constructing the Orthocenter  Problem 1
Math › Geometry › Constructions
How to construct the orthocenter of an obtuse triangle. 
Constructing a Median  Concept
Math › Geometry › Constructions
How to define a median in a triangle. 
Constructing a Median  Problem 1
Math › Geometry › Constructions
How to construct a median in a triangle. 
The Law of Cosines  Concept
Math › Geometry › Basic Trigonometry
How to define and use the law of cosines. 
The Law of Cosines  Concept
Math › Trigonometry › Basic Trigonometry
How to define and use the law of cosines. 
The Law of Sines  Concept
Math › Trigonometry › Basic Trigonometry
How to define the law of sines. 
The Law of Cosines  Concept
Math › Precalculus › Basic Trigonometry
How to define and use the law of cosines. 
The Law of Sines  Concept
Math › Precalculus › Basic Trigonometry
How to define the law of sines. 
The Law of Sines  Concept
Math › Geometry › Basic Trigonometry
How to define the law of sines. 
Area of a Segment  Concept
Math › Geometry › Area
How to derive the area of a segment formula. 
Area of Trapezoids  Problem 1
Math › Geometry › Area
How to find the length of a base in a triangle where the area, other base, and height are known. 
Rotational Symmetry  Concept
Math › Geometry › Transformations
How to define rotational symmetry and identify the degree of rotational symmetry of common regular polygons. 
Reflectional Symmetry  Concept
Math › Geometry › Transformations
How to identify and describe reflectional symmetry. 
Constructing the Centroid  Problem 1
Math › Geometry › Constructions
How to construct the centroid of a triangle. 
Trapezoid Midsegment Properties  Concept
Math › Geometry › Polygons
How to define the midsegment of a trapezoid, calculate its length, and relate it to a triangle midsegment.