Answer:

Explanation:
The diagonal of a square is x units.
Let the side of a square is s.
Using pythagoras,

The area of the square is,
A = s²
So,

So, the area of a square is
sq units.
Answer:
About an year.
Explanation:
If we could collect all of the energy of the sun that came to earth in one hour , the energy is enough for all of humanity's energy needs for one year. The humans used about 575 quadrillion Btu whereas each hour 430 quintillion Joules of energy is received from the sun by the Earth which is a huge quantity so by seeing the data we can conclude that about one hour of sun's energy is enough for about about one year for the whole world.
Belgium, The Democratic Republic of the Congo was a Belgian Colony during the Colonial era of Africa
Nation states are difficult to create because of colonies ((tell me if u need to know why because I can help with that))
Answer:
usually very cold winters, and short, cool to mild summers
Explanation:
I did research on it