Β D) 7.9 ft
Step-by-step explanation:
To answer this, you only need to reject the nonsense answers.
The arc length will be more than 5 ft and less than the length of 2 sides of a 5 ft square (10 ft). Only one answer choice falls in that range.
Β 7.9 ft
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If you like, you can figure 1/4 of the circumference of a circle with radius 5 ft:
Β C/4 = (1/4)(2Ο)(5 ft) = 2.5Ο ft β 7.854 ft β 7.9 ft