136 Videos for "length"

Isosceles Triangles  Problem 1
Math › Geometry › Triangles
How to solve for the side length and base angle measures of an isosceles triangle. 
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. 
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. 
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. 
Converse of the Pythagorean Theorem  Problem 1
Math › Trigonometry › 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. 
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. 
Proportional Segments Between Parallel Lines  Problem 1
Math › Geometry › Similarity
How to find a missing length in a triangle cut by a line parallel to a base. 
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. 
Pythagorean Theorem Proofs  Problem 2
Math › Trigonometry › Pythagorean Theorem
How to use the Pythagorean Theorem to determine if a triangle is acute, right, or obtuse, given the lengths of the triangle. 
306090 Triangles  Problem 4
Math › Trigonometry › Pythagorean Theorem
How to find the area of an equilateral triangle given only a side length. 
Proportional Segments Between Parallel Lines  Problem 2
Math › Geometry › Similarity
How to find missing lengths created by two parallel lines passing through a triangle. 
Pythagorean Theorem Proofs  Problem 2
Math › Geometry › Pythagorean Theorem
How to use the Pythagorean Theorem to determine if a triangle is acute, right, or obtuse, given the lengths of the triangle. 
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. 
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. 
306090 Triangles  Problem 4
Math › Geometry › Pythagorean Theorem
How to find the area of an equilateral triangle given only a side length. 
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. 
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. 
Algebraic Representation of Vectors  Concept
Math › Precalculus › Vectors and Parametric Equations
How to express a position vector algebraically in component form <a,b>, and how to compute its magnitude. 
Angle Bisectors and Opposite Side Ratios  Problem 1
Math › Geometry › Similarity
How to find a missing length created by a median in a triangle using a proportion. 
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.