4. identify the predominant climate of south america. (1 point)
temperate
arid
polar
tropical
5. which of the following bird species is found almost exclusively in the southern hemisphere? (1 point)
condor
penguin
albatross
frigatebird

4. "Tropical" is the one among the following choices given in the question that is the predominant climate of South America. The correct option among all the options given is the fourth option.

5. "Albatross" is the one bird species among the following that is found almost exclusively in the Southern Hemisphere. The correct option among all the options given is the third option.

4. tropical, 5. penguin

Explanation:

Southern America has a predominant climate of the tropics and the tropics of Capricorn also passes through the country bisecting it into two halves, and the region also presents a constant regularity of the tempered and the presence of the 30 ° southern latitude. The impact of the equatorial one type of climate and the impact of the high rainfall in the lands is thus in itself a dominating character of the region. An example of this is the amazon rainforest. The southern landmass is made up of Australia and the antarctic plates and these have penguins as the most common bird species present and being a flightless bird they generally tend to be found near the shores cover most of the landscape of the antarctic.The southernaires or hemisphere are thus dominate by the birds that can easily adapt to these regions.

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.