Answer:
C. 6ft
Explanation:
the Pythagorean theorem states a^2+b^2=√c the inverse to find the leg would be a=√(c^2-b^2)
1. The empires are gone 2. The wars over religion and territory have stopped 3. Population has skyrocketed
Children used to work in factories due to child labor. The men would be off fighting in wars and the women would work at factories or stayed at home. With children they didn't have to get paid because of their age and were treated badly. That is why they were chosen to start working in factories.
I don't know I think they can preduct the future