area of a triangle   6 videos

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  Area and Perimeter of Triangles

  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 Circles

  Pre-Algebra Introductory Geometry

  Vocabulary and formulas for the area of a circle

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  Area and Perimeter of Rectangles

  Pre-Algebra Introductory Geometry

  Overview of area and perimeter formulas for parallelograms and rectangles

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  Volume and Surface Area

  Pre-Algebra Introductory Geometry

  Vocabulary and formulas for surface area and volume of common solids

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  Similar Triangles

  Pre-Algebra Introductory Geometry

  Overview of similarity: congruent angles, proportional corresponding sides

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  Polygons

  Pre-Algebra Introductory Geometry

  Naming polygons, classifying triangles, and classifying quadrilaterals