Students must be able to decompose or break apart a composite figure formed by rectangles into separate rectangles that do not overlap, find the area of each rectangle, and add those areas to find the area of the original figure.
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3.6 Geometry and measurement. The student applies mathematical process standards to analyze attributes of two-dimensional geometric figures to develop generalizations about their properties. The student is expected to:
(D) decompose composite figures formed by rectangles into non-overlapping rectangles to determine the area of the original figure using the additive property of area