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MathMentor

Learn with Mentor · 8 min

Composite Area and Perimeter Problems

Learn to find the area of a compound shape by splitting it into simple shapes and adding, or subtracting a cut-out piece from the whole.

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Shapes made of shapes

Real objects are rarely a single rectangle or triangle — an L-shaped room or a rectangle with a hole cut out are both compound shapes, but you can still find their area using the simple shape formulas you already know.