299 Videos for "triangles"

HL  Problem 2
Math › Geometry › Triangles
How to use HL to determine the congruence of adjacent right triangles and how to correctly denote the congruence. 
454590 Triangles  Problem 3
Math › Trigonometry › Pythagorean Theorem
How to find the perimeter of a square given the length of its diagonal using 454590 triangles. 
454590 Triangles  Problem 4
Math › Trigonometry › Pythagorean Theorem
How to calculate the area of a 454590 triangle given only the length of the hypotenuse. 
454590 Triangles  Problem 1
Math › Trigonometry › Pythagorean Theorem
How to find the hypotenuse in a 454590 triangle given a leg with a length that contains a square root. 
Pascal's Triangle  Problem 1
Math › Algebra 2 › Polynomials
Exploring Pascal's Triangle, its patterns, and its connections to binomial expansion, and combinatorics. 
Pascal's Triangle  Problem 1
Math › Precalculus › Topics in Discrete Math
Exploring Pascal's Triangle, its patterns, and its connections to binomial expansion, and combinatorics. 
Area and Perimeter of Triangles  Concept
Math › PreAlgebra › Introductory Geometry
Understanding why the area of a triangle is 1/2 base times height 
Area and Perimeter of Triangles  Problem 1
Math › PreAlgebra › Introductory Geometry
Finding the area and perimeter of a triangle 
Area and Perimeter of Triangles  Problem 3
Math › PreAlgebra › Introductory Geometry
Finding the area and perimeter of triangles with variables in the side lengths 
Area and Perimeter of Triangles  Problem 2
Math › PreAlgebra › Introductory Geometry
Finding the area and perimeter of composite shapes that contain triangles 
454590 Triangles  Problem 2
Math › Geometry › Pythagorean Theorem
How to find the length of a leg in a 454590 given the hypotenuse. 
Using Sine to Calculate the Area of a Triangle  Problem 2
Math › Precalculus › Basic Trigonometry
How to calculate the area of a regular inscribed polygon given only the radius of a circle. 
Using Sine to Calculate the Area of a Triangle  Problem 2
Math › Trigonometry › Basic Trigonometry
How to calculate the area of a regular inscribed polygon given only the radius of a circle. 
CPCTC  Concept
Math › Geometry › Triangles
How to use the principle that corresponding parts of congruent triangles are congruent, or CPCTC. 
454590 Triangles  Problem 2
Math › Trigonometry › Pythagorean Theorem
How to find the length of a leg in a 454590 given the hypotenuse. 
Using Sine to Calculate the Area of a Triangle  Problem 2
Math › Geometry › Basic Trigonometry
How to calculate the area of a regular inscribed polygon given only the radius of a circle. 
ASA and AAS  Concept
Math › Geometry › Triangles
How to use the ASA and AAS shortcuts to determine the congruence of two triangles. 
SSS and SAS  Concept
Math › Geometry › Triangles
How to use the SAS and SSS shortcuts to determine the congruence of two triangles. 
Similar Triangles  Problem 3
Math › PreAlgebra › Introductory Geometry
Using proportionality for indirect measurement of a flagpole 
Similar Triangles  Concept
Math › PreAlgebra › Introductory Geometry
Overview of similarity: congruent angles, proportional corresponding sides