Linear is a measure of length, and area is a measure of the number of square m (ft) of a region. These are different dimensions.
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Circumference of the circle in feet = 24*pi Area of the circle in square feet = pi*122
Area is proportional to the square of the linear dimensions.If diameter is tripled, area increases by a factor of (3)2 = 9 .
Width Of Circle X 3.14 or PII
The circumference of a circle is a linear measurement - it is in ordinary metres. The area of a circle is a square measurement - it is in square metres. If you know the circumference of a circle (let's call it C), then the area (A) is calculated by first working out the radius (R) R = (C ÷ 2pi) A = (pi x R2)
The area of a sector is 0.5*r^2*theta square units where r is the radius measured in linear units and theta is the angle (measured in radians).