G.E.D. Math 26a, Area of 2D, Volume of 3D (composite figures)

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An explanation of how to find the area of a 2D composite figure or volume of a 3D composite figure (a figure made of combined shapes), using formulas, area of a half-circle, rectangle, triangle, parallelogram, and volume of a square pyramid, rectangular prism, cone, cylinder.

Grade 7 Math #9.4a, Surface area of a rectangular Prism

Grade 7 Math #9.4b, Surface area of a Composite solid

Grade 7 Math #9.4c, How removing a cube increases surface area

Grade 7 Math #9.5a, Volume of a Triangular prism

Grade 7 Math #9.5b, Volume of a Trapezoidal prism

Grade 7 Math #9.5c, Volume of a Composite figure

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