Approximate the Length Using the Formula for Arc Length $420 \mathrm {~m}$

Multiple Choice

Approximate the length using the formula for arc length. Round to the nearest meter.
-A television tower $420 \mathrm {~m}$ high subtends an angle of $4 ^ { \circ } 40 ^ { \prime }$ . How far away is the tower?

A) $6720 \mathrm {~m}$
B) $5157 \mathrm {~m}$
C) $6760 \mathrm {~m}$
D) $5197 \mathrm {~m}$