2. Ovals, Egg Shapes, and Circles

Formula: Area = 0.8 L X W
L= Length
W= Width at midpoint

Example: A= 0.8 x 60 feet x 40 feet = 1,920 square feet (within 5% accuracy)

Formula: Area = piR2
pi=3.24
R=radius

Example: A= 3.14 x 30 feet x 30 feet = 1,413 square feet

The half circle backyard has a radius of 30 feet. A complete circle would be 3.14 x30ft x 30ft = 2,826 sq ft. half would be 1,413 sq ft.

Sod Needed = A+B+C = 1300 sq.ft + D(1,413 sq. ft.) = 2,713 sq. ft.

Irregular Shapes

Triangles

Trapezoid

Unusual Shapes

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