What is the measure of ac
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Arcs of a Circle:
A circle is a planner geometry in the form of a closed path such that there is a point inside it at a fixed position and it has a constant distance from all the points present on the circle.

This fixed point are constant distance are termed as the center and radius of the circle respectively.

Its in the national history museum and you can't se the original because its locked away in a vault 

Humid continental climate is found in the interior of continents between the 30 and 60 degrees latitude, but usually above the 40 degree line.   40 degrees north of the equator means less direct sunlight and therefore less warmth.   this climate is mainly found in the northern hemisphere since there are no major landmasses in the southern hemisphere.  if you live in northern indiana, you know all about humid continental because that is the climate type you have!