Which statement best describes where the pi/4 comes from in the formula derivation?

The answer is B. It is the ratio of the area of the circle to the area of the square from a cross section.

Step-by-step explanation:

The answer is in the picture of the pyramid. The circle and square are at a cross section. You can also tell just by looking at the right angle and how the circle can be cut into 4 parts.

the answer is d

step-by-step explanation:

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