Answer:
94.05 units is the perimeter of this pentagon.
Length of each side in pentagon: 2r × Sin(180/n)
where r is radius and n is number of sides
Using the formula: 2r × Sin(180/n)
: 2*16 * sin(180/5)
: 18.8 units
Perimeter = 5(18.8) units........5 as we know pentagon has 5 sides
= 94.05 units