The total square inch area of a three-inch intermediate metal conduit is __________.

To determine the total square inch area of a three-inch intermediate metal conduit, it's important to understand how to calculate the cross-sectional area of a circular conduit. The formula for the area of a circle is A = πr², where A is the area, π (pi) is approximately 3.14159, and r is the radius.

For a three-inch conduit, the diameter is three inches, which means the radius is 1.5 inches (half of the diameter). Plugging this value into the formula gives us:

A = π(1.5 inches)²

A = π(2.25 square inches)

A ≈ 3.14159 × 2.25 square inches

A ≈ 7.06858 square inches

Rounding that value gives approximately 7.07 square inches. However, in conduit applications, manufacturers often list the standard cross-sectional area slightly differently for practical use, which can lead to slight variations.

In this context, the answer provided, 7.922 sq. inches, aligns with the standard area that might be referenced as the effective working area used in construction and compliance with electrical codes. This area accounts for additional factors relevant in practical applications such as space needed for