Question

Find the area $A$ of the sector of a circle of radius 70 feet formed by the central angle $\frac{1}{2}$ radian. A (area) = feet$^2$ (Type an integer or decimal rounded to three decimal places as needed.)

          Find the area $A$ of the sector of a circle of radius 70 feet formed by the central angle $\frac{1}{2}$ radian.

A (area) =  feet$^2$
(Type an integer or decimal rounded to three decimal places as needed.)

Find the area A of the sector of a circle of radius 70 feet formed by the central angle (1)/(2) radian.

A (area) = feet^2
(Type an integer or decimal rounded to three decimal places as needed.)

Added by Michael F.

Precalculus with Limits

Ron Larson 2nd Edition

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Find the area A of the sector of a circle of radius 70 feet formed by the central angle π/2 radian. A = (1/2) * r^2 * θ A = (1/2) * 70^2 * π/2 A = (1/2) * 4900 * π/2 A = 2450 * π A ≈ 7696.155 feet^2