• #### Area and Perimeter of Circles - Concept

##### Math›Pre-Algebra›Introductory Geometry
Vocabulary and formulas for the area of a circle
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• #### 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.
• #### 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 - Problem 2

##### Math›Geometry›Basic Trigonometry
How to calculate the area of a regular inscribed polygon given only the radius of a circle.
• #### Area With Determinants - Problem 2

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to use the triangle area formula to test three points for collinearity.
• #### Area With Determinants - Problem 3

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to compute the area of an irregular quadrilateral using determinants.
• #### Area With the Cross Product - Problem 1

##### Math›Precalculus›Systems of Linear Equations and Matrices
How to compute the area of a parallelogram using the cross product of the vectors that determine it.
• #### Multiplying Polynomials using Area Models - Problem 3

##### Math›Algebra›Polynomials
How to multiply two trinomials using an area model.
• #### Volume and Surface Area - Concept

##### Math›Pre-Algebra›Introductory Geometry
Vocabulary and formulas for surface area and volume of common solids
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• #### Approximating Area Using Rectangles - Problem 1

##### Math›Calculus›The Definite Integral
How to estimate the area between a curve and the x-axis with left- and right-hand sums.
• #### Approximating Area Using Rectangles - Problem 3

##### Math›Calculus›The Definite Integral
How to estimate the area between a curve and the x-axis with left- and right-hand sums.
• #### Area and Perimeter of Rectangles - Concept

##### Math›Pre-Algebra›Introductory Geometry
Overview of area and perimeter formulas for parallelograms and rectangles
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• #### Area and Perimeter of Triangles - Concept

##### Math›Pre-Algebra›Introductory Geometry
Understanding why the area of a triangle is 1/2 base times height
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• #### Area and Perimeter of Rectangles - Problem 3

##### Math›Pre-Algebra›Introductory Geometry
Finding area and perimeter of parallelograms with variables in side lengths
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• #### Area and Perimeter of Triangles - Problem 1

##### Math›Pre-Algebra›Introductory Geometry
Finding the area and perimeter of a triangle
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• #### Area and Perimeter of Circles - Problem 2

##### Math›Pre-Algebra›Introductory Geometry
Area of composite shape involving circles in a real life problem
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• #### Area and Perimeter of Circles - Problem 1

##### Math›Pre-Algebra›Introductory Geometry
Exact and decimal approximations for the area and circumference of circles
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• #### Volume and Surface Area - Problem 3

##### Math›Pre-Algebra›Introductory Geometry
Volume and surface area of pyramids
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• #### Volume and Surface Area - Problem 2

##### Math›Pre-Algebra›Introductory Geometry
Surface area and volume of prisms
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