Find the Area of a Sector of a Circle Having $$\theta$$

Multiple Choice

Find the area of a sector of a circle having radius r and central angle $$\theta$$ . If necessary, express the answer to the nearest
tenth.
-A center-pivot irrigation system waters a sector-shaped field. Find the area of the field if the central angle, $\theta = 20 ^ { \circ }$ and the radius, $r = 160$ meters. Round to the nearest whole number.

A) $28 m ^ { 2 }$
B) $4468 \mathrm {~m} ^ { 2 }$
C) $56 \mathrm {~m} ^ { 2 }$
D) $8936 \mathrm {~m} ^ { 2 }$