Which regular polygon with an apothem of 5 inches, will have a perimeter that is the closest to the circumference of a circle with a diameter of 10.8 inches?
square
pentagon
hexagon
octagon

Hexagon

Step-by-step explanation:

Let us find the circumference of the circle first. We are given its diameter as 10.8 inches. The formula to find the perimeter of the circle is

r is radius which is half of diameter that is 10.8÷2 = 5.4

hence ,

P=2*3.14*5.4=33.912 inches

Now let us see the perimeter of each of them with 5 inches as side

Square : 4*5=20 inches

Pentagon : 5*5 = 25 inches

Hexagon : 6*5=30 inches

Octagon : 8*5=40 inches

Hence It is close to perimeter of Hexagon

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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step-by-step explanation: