Solve the problem.A pendulum swings through an arc of length 80 inches on its first swing. On each successive swing, the length of the arc is 
the length of the arc on the preceding swing. Find the length of the arc on the fourth swing, and find the total arc length for the first four swings. Round to two decimal places.
A. 15.80 in.; 168.89 in.
B. 15.80 in.; 192.59 in.
C. 23.70 in.; 168.89 in.
D. 23.70 in.; 192.59 in.
Answer: D
Mathematics
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Mathematics