How do I solve this?

Step-by-step explanation:

Base = 25 ft

height = 8 ft

Area of triangle =

100 ft²

Step-by-step explanation:

The area (A) of the triangle is calculated as

A = bh ( b is the base and h the perpendicular height )

Here b = 25 ( parallel to the base of the rectangle ) and h = 8, then

A = × 25 × 8 = 12.5 × 8 = 100 ft²

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