151 Videos for "length"

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. 
Trigonometric Ratios: Sine  Problem 1
Math › Precalculus › Basic Trigonometry
How to find the sine of two angles in a right triangle given two side lengths. 
Trigonometric Ratios: Sine  Problem 1
Math › Trigonometry › Basic Trigonometry
How to find the sine of two angles in a right triangle given two side lengths. 
Converse of the Pythagorean Theorem  Problem 1
Math › Geometry › Pythagorean Theorem
How to use the converse of the Pythagorean Theorem to determine if a triangle is a right triangle given the lengths of the triangle. 
Unit Vectors  Concept
Math › Precalculus › Vectors and Parametric Equations
How to express a vector algebraically in terms of the unit vectors i and j. 
Addition and Subtraction with Decimals  Problem 1
Math › PreAlgebra › Decimals and Percents
Adding decimals by vertically aligning the decimal point and adding zeros to make them the same length 
Triangle Side and Angle Inequalities  Problem 1
Math › Geometry › Triangles
How to list the angles of a triangle from smallest to largest given the side lengths. 
Addition and Subtraction with Decimals  Problem 2
Math › PreAlgebra › Decimals and Percents
Subtracting decimals by vertically aligning the decimal point and adding zeros to make them the same length 
Area of Kites and Rhombuses  Concept
Math › Geometry › Area
How to derive the area formula of a kite based on the rectangle formula; how to calculate the area of a rectangle using diagonal lengths. 
Proportional Segments Between Parallel Lines  Problem 2
Math › Geometry › Similarity
How to find missing lengths created by two parallel lines passing through a triangle. 
Converse of the Pythagorean Theorem  Concept
Math › Trigonometry › Pythagorean Theorem
How to use the converse of the Pythagorean Theorem to determine if a triangle is a right triangle, how to use Pythagorean triples to memorize the lengths of certain right triangles. 
Introduction to the 3D Coordinate System  Problem 1
Math › Precalculus › Vectors and Parametric Equations
How to find the coordinates of the vertices of a rectangular box. 
Unit Vectors  Problem 3
Math › Precalculus › Vectors and Parametric Equations
How to find a unit vector in any direction given the direction's angle. 
Converse of the Pythagorean Theorem  Concept
Math › Geometry › Pythagorean Theorem
How to use the converse of the Pythagorean Theorem to determine if a triangle is a right triangle, how to use Pythagorean triples to memorize the lengths of certain right triangles. 
306090 Triangles  Problem 4
Math › Trigonometry › Pythagorean Theorem
How to find the area of an equilateral triangle given only a side length. 
Similar Triangles in Circles and Right Triangles  Problem 2
Math › Geometry › Similarity
How to find missing side lengths in a right triangle with an altitude drawn from the right angle. 
Using the Pythagorean Theorem to find a Missing Hypotenuse  Concept
Math › Geometry › Pythagorean Theorem
How to calculate the hypotenuse in a right triangle given the lengths of the legs using the Pythagorean Theorem. 
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. 
Multiplying Monomials and/or Binomials and FOIL  Problem 6
Math › Algebra › Polynomials
An area, or geometric model for multiplying polynomials is explored through a "rectangle" or "box" method of organizing terms. 
Using the Pythagorean Theorem to find a Missing Hypotenuse  Concept
Math › Trigonometry › Pythagorean Theorem
How to calculate the hypotenuse in a right triangle given the lengths of the legs using the Pythagorean Theorem.