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What degrees is the tropics right now?
55 degrees north longitude.
If it was -15 degrees and it rose 20 degrees what degrees is it now?
5 degrees
Is it possible to draw a quadrilateral that has 2 right angles but is not a rectangle?
Yes. The easiest way to do so is draw a line, then have a right angle at each end, and from the resulting lines draw the final line so it does not form two further right angles. Basically you have 360 degrees to work with. you use 180 degrees up for your two right angles. Now you have 180 degrees left over to work with. you can have one angle be acute (say 30 degrees) and one angle be obtuse (say 150 degrees). This gives you your 2 right angle, non rectangle, quadrilateral.
How do you know that the sum of an angle in a circle is 360?
It's actually 2(pi), you technically need to say 360 degrees. I believe we defined it to be that, but you can prove that it's 360 degrees: Draw a diameter. Draw a second diameter perpendicular to the first. You now have four right angles. Right angles measure 90 degrees. 90 * 4 = 360 Hence, there are 360 degrees in the circle.
If the starting temperature is 6 degrees and then rises 5 degrees what will be the temperature now?
11 degrees
