54 Videos for "area of a triangle"

Area of Triangles  Concept
Math › Geometry › Area
How to derive the area of a triangle formula using the rectangle area formula. 
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. 
Area of Triangles  Problem 2
Math › Geometry › Area
How to find an unknown variable, x, when the area is given and the base and height of a triangle is given in terms of x. 
Using Sine to Calculate the Area of a Triangle  Concept
Math › Geometry › Basic Trigonometry
How to calculate the area of any triangle using two sides and an included angle. 
Using Sine to Calculate the Area of a Triangle  Problem 1
Math › Geometry › Basic Trigonometry
How to calculate the area of a triangle using two sides and an included angle. 
Using Sine to Calculate the Area of a Triangle  Concept
Math › Trigonometry › Basic Trigonometry
How to calculate the area of any triangle using two sides and an included angle. 
Using Sine to Calculate the Area of a Triangle  Problem 1
Math › Precalculus › Basic Trigonometry
How to calculate the area of a triangle using two sides and an included angle. 
Using Sine to Calculate the Area of a Triangle  Problem 1
Math › Trigonometry › Basic Trigonometry
How to calculate the area of a triangle using two sides and an included angle. 
Using Sine to Calculate the Area of a Triangle  Concept
Math › Precalculus › Basic Trigonometry
How to calculate the area of any triangle using two sides and an included angle. 
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. 
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 
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. 
Area and Perimeter of Triangles  Concept
Math › PreAlgebra › Introductory Geometry
Understanding why the area of a triangle is 1/2 base times height 
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. 
Area and Perimeter of Triangles  Problem 2
Math › PreAlgebra › Introductory Geometry
Finding the area and perimeter of composite shapes that contain triangles 
Area of a Segment  Problem 1
Math › Geometry › Area
How to find the area of a segment, given a leg in a right triangle. 
Area of a Segment  Problem 2
Math › Geometry › Area
How to find the area of a segment, given a side in an equilateral triangle. 
Area With the Cross Product  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a triangle in the xyplane using vectors formed from two of its sides. 
Area With Determinants  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a triangle using a determinant.