How do wind, ocean currents, bodies of water, and elevation affect climate patterns on earth?

Wind patterns, ocean currents, proximity to large bodies of water (i.e. seas and oceans), and elevation all impact climate patterns through a variety of factors. These factors largely impact the flow of energy and heat from the sun across the Earth's surface through processes of convection. For example the "Jet Stream" in the United States is a wind pattern that carries air and weather patterns across the United States and its flow shifts directions depending on seasons. Another is the Gulf Stream which brings warm currents from the Caribbean and Central American up the American coast and out into the Atlantic ocean warming the temperatures of the coastal water ways and also impacting the climate of the land near it. 

I'm pretty sure there's a geometry rule for   anyways, if the triangle is equilateral, and the circle is circumscribed, the circle is outside of the triangle.  to find the area, you need the radius.  the radius should be a straight line from the center of the triangle to any of it's points.  draw lines from the center of the circle to each of the triangle points.  draw three more lines from the center to the middle of the sides of the triangle.  you should now have six separate 30-60-90 triangles inside of your original triangle. use your 30-60-90 rules to solve for the radius, then the circumference.