Surface Area

Area of Irregular Shapes

The student will determine the area of an irregular shape by breaking the shape down into rectangles and/or triangles and finding the total area the sections.

The irregular area may break down into these shapes

Rectangles only
Rectangles and triangles
Rectangles and semi or quarter circles
Rectangles only, shapes have rectangular holes

The irregular area may break down into this many sections

2 sections
3 sections
2 or 3 sections

Units

Inches
Feet
Yards
Centimeters
Millimeters

Pi

Pi = 3.14
Pi = 3.1416

Multiple worksheets

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