269 Videos for "triangles"

Similar Triangles in Circles and Right Triangles  Concept
Math › Geometry › Similarity
How to determine if two triangles in a circle are similar and how to prove that three similar triangles exist in a right triangle with an altitude. 
Triangle Angle Sum  Concept
Math › Geometry › Triangles
How to apply the triangle angle sum theorem. 
Triangle Angle Sum  Problem 1
Math › Geometry › Triangles
How to apply the triangle angle sum theorem when you need to find missing angles. 
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. 
Triangle Side Inequalities  Problem 1
Math › Geometry › Triangles
How to determine whether given side lengths could form a triangle using the triangle side inequalities. 
Triangle Side Inequalities  Problem 2
Math › Geometry › Triangles
How to determine whether given side lengths could form a triangle using the triangle side inequalities. 
Similar Triangles in Circles and Right Triangles  Problem 1
Math › Geometry › Similarity
How to find missing side lengths of triangles in a circle. 
Special Isosceles Triangle Properties  Concept
Math › Geometry › Triangles
How to identify a segment from the vertex angle in an isosceles triangle to the opposite side. 
Special Isosceles Triangle Properties  Problem 1
Math › Geometry › Triangles
How to find the measure of a missing length in an isosceles triangle with an altitude. 
Triangle Angle Sum  Problem 2
Math › Geometry › Triangles
How to apply the triangle angle sum theorem when you need to solve for x. 
Isosceles Triangles  Problem 2
Math › Geometry › Triangles
How to solve for the measure of the vertex angle of an isosceles triangle given an exterior angle. 
Isosceles Triangles  Concept
Math › Geometry › Triangles
How to define isosceles triangles, their components and how to determine their properties. 
Triangle Side and Angle Inequalities  Concept
Math › Geometry › Triangles
How to determine the relationship between the side inequalities and angle inequalities in a triangle. 
Triangle Side Inequalities  Concept
Math › Geometry › Triangles
How to determine the triangle side inequalities. 
Isosceles Triangles  Problem 3
Math › Geometry › Triangles
How to solve for a variable used to measure the angles of an isosceles triangle. 
Special Isosceles Triangle Properties  Problem 2
Math › Geometry › Triangles
How to find the measure of a vertex angle when a median is given in an isosceles triangle. 
Area of Triangles  Problem 1
Math › Geometry › Area
How to find the height of a triangle, given the three sides of a right triangle, using the area of a triangle formula. 
Isosceles Triangles  Problem 1
Math › Geometry › Triangles
How to solve for the side length and base angle measures of an isosceles triangle. 
Triangle Side and Angle Inequalities  Problem 2
Math › Geometry › Triangles
How to list the sides of a triangle from longest to shortest given the measures of the interior angles. 
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.