54 Videos for "area of a triangle"

Pythagorean Theorem Proofs  Concept
Math › Geometry › Pythagorean Theorem
How to prove the Pythagorean Theorem using Algebra to show the area of the smaller square plus the area of four triangles is equal to the area of the larger square. 
Center and Apothem of Regular Polygons  Concept
Math › Geometry › Area
How to define the apothem and center of a polygon; how to divide a regular polygon into congruent triangles. 
Pythagorean Theorem Proofs  Problem 1
Math › Geometry › Pythagorean Theorem
How to prove the Pythagorean Theorem by rearranging triangles inside a square. 
Pythagorean Theorem Proofs  Problem 1
Math › Trigonometry › Pythagorean Theorem
How to prove the Pythagorean Theorem by rearranging triangles inside a square. 
Solving Literal Equations  Problem 1
Math › Algebra › Solving Equations
How to solve literal equations about area of a triangle. 
Center and Apothem of Regular Polygons  Problem 1
Math › Geometry › Area
How to find the length of an apothem in a regular polygon given a side length and the number of sides. 
Using the Pythagorean Theorem to find a Missing Leg  Problem 3
Math › Trigonometry › Pythagorean Theorem
How to use the Pythagorean Theorem to find the surface area of a prism given one of the face diagonals and the lengths of two edges. 
Using the Pythagorean Theorem to find a Missing Hypotenuse  Problem 3
Math › Geometry › Pythagorean Theorem
How to find the surface area of a triangular prism using the Pythagorean Theorem. 
Using the Pythagorean Theorem to find a Missing Leg  Problem 3
Math › Geometry › Pythagorean Theorem
How to use the Pythagorean Theorem to find the surface area of a prism given one of the face diagonals and the lengths of two edges. 
Using the Pythagorean Theorem to find a Missing Hypotenuse  Problem 3
Math › Trigonometry › Pythagorean Theorem
How to find the surface area of a triangular prism using the Pythagorean Theorem. 
Formulas  Problem 1
Math › PreAlgebra › Solving Equations and Inequalities
Solving distance = rate times time or area of a triangle equations for one of the variables 
Solving Quadratic Equations by Factoring  Problem 17
Math › Algebra › Quadratic Equations and Functions
Geometry applications of solving quadratic equations by factoring, including rectangle, triangle, and circle areas 
Solving Quadratic Equations by Factoring  Problem 17
Math › Algebra 2 › Quadratic Equations and Inequalities
Geometry applications of solving quadratic equations by factoring, including rectangle, triangle, and circle areas 
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.