You can use the similar triangles formed by the altitude to write ratios for corresponding sides. Using ratios from the large and medium triangles, Start Fraction c Over a Infraction = . This can be rewritten as = a2. Using ratios from the large and small triangles, = Start Fraction b Over e Infraction. This can be rewritten as b2 = ec. By substitution, a2 + b2 = . You can then factor as a2 + b2 = c(f + e). From the large triangle, you know (f + e) = . So, a2 + b2 = c2 by using substitution.

d. stage 4

explanation:

the existence of some kind of demographic transition is widely accepted in the social sciences because of the well-established historical correlation linking dropping fertility to social and economic development.[1] scholars debate whether industrialization and higher incomes lead to lower population, or whether lower populations lead to industrialization and higher incomes. scholars also debate to what extent various proposed and sometimes inter-related factors such as higher per capita income,lower mortality, old-age security, and rise of demand for human capital are involved.[2]

the answer is translated आशा है कि मैंने मदद की.