$\"\"$

Observe the diagram.

Sector’s central angle $\"\"$ is $\"\"$ .

Radius is $\"\"$ inches.

Convert the central angle degrees measure to radians.

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Diameter of the circle $\"\"$ km.

$\"\"$

Radius of the circle is $\"\"$ .

Area of the sector $\"\"$ .

Substitute $\"\"$ and $\"\"$ in $\"\"$ .

$\"\"$

Area of the sector is $\"\"$ square kilometers. $\"\"$

Area of the sector is $\"\"$ square kilometers.