Nebraska Core Academic Content Standards
NE.MA.6.3. GEOMETRY: Students will communicate geometric concepts and measurement concepts using multiple representations to reason, solve problems, and make connections within mathematics and across disciplines.
MA.6.3.3. Measurement: Students will perform and compare measurements and apply formulas.
MA.6.3.3.a. Determine the area of quadrilaterals, including parallelograms, trapezoids, and triangles by composition and decomposition of polygons as well as application of formulas.