Answer:
58.2
Step-by-step explanation:
48.5*1.2=58.2
First, make 6 1/3 a improper fraction:

. Now we have 19/3*7/3:

.
According to the attached formula:
apothem = side length / 2 * tan (180/number of sides)
apothem = 6 / 2 * tan (180/10)
apothem = 6 / 2 * 0.32492
apothem =
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9.23 cm
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