WILL MARK BRAINLIEST!!

Step-by-step explanation:

One way to find the area of the hexagon is to use the formula , where p is the perimeter and a is the apothem (distance from the center to the midpoint of one side).

The problem says the side length is 20, so the perimeter is 6 x 20 = 120.

The apothem is the distance marked by the dotted line. The rectangles height is , so the apothem is half of that, .

The area is

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies