6th Grade · Geometry

Decompose

6.G.A.1

Definition

To break a figure into smaller, simpler shapes to make area easier to find.

Examples

  • Break an L-shape into two rectangles: 5×4=20 and 8×3=24, total 44 square units.
  • Find each simple area, then add them together.

Key rule

Decomposing breaks a complex figure into shapes you already know how to measure.

Memory hook

Split it into pieces you can handle.