If the area of equilateral triangle abc is 4 times that of equilateral triangle pqr, then each side of abc is how many times the corresponding side of pqr?

For similar triangles

The ratio of the areas of the triangle is equal to the square of the ratio of the corresponding sides.

We know two equilateral are always similar.

Now it is given that area of ΔABC = 4 × ΔPQR

So

But according to the rule of similarity

So we have

Taking square root on both sides

So each side of ΔABC is two times the side of ΔPQR.

c is the correct answer

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