Answer:
how do you find the radius of a circle if you only know the area of the circle. Do you somehow reverse the Pi formula. and hence if you know A, divide it by π and then take the square root to find r.
Because it offers the historian an objective snapshot of the public sentiment of the time, which the cartoonist (should be) distilling for their readers, according to their feelings, for mass appeal. I say objective as it is usually very easy to decipher their subjective viewpoint according to the publication. The value of this is that it is tapping into how the masses 'feel' rather than how subjective facts can be built to form historical opinion. It becomes especially valuable prior to this century, when public sentiment is harder to garner as we were less technologically advanced.
<span>They limited the amount of gold available for trade, increasing its value.</span>
the same 2 colonies that spain held until 1888.