Using google earth to find arc length and measure of a sector

5. Central angle = 328.24 – 211.31=116.93 = 117°
Radius = 813.42m
Arc length = 117/360 x 2 rπ
117/360 x 2 x 813.42
528.7π m

6. Central angle = 328.24 – 211.31=116.93 = 117°
Radius = 813.42m
Sector area = 117/360 xπ r²
117/360 x (813.42)²
215036.9π sq meters

7. 211.42°
328.24°
813.42
117°