The funniest joke wins

Which does the author mean by " nature had to kindle all the fires, for man by his own effort was unable to produce a spark

Idon’t know if the answer are right. ❤️

Lliana wants to find the perimeter of triangle abc. she uses the distance forumla to determine the length of ab. finish lliana's calculations to find the length of ab. what is the perimeter of triangle abc? round the answer to the nearest tenth, of necessary.