2 angles that add up to equal 180 degrees
---can be any two angles 179+1=180, 90+90=180, 80+100=180
+118667 Hi bioschip,
I just thought I would add a litte
2 angles that add to 90 degrees are called complementary angles
2 angles that add to 180 degrees are called supplementary angles.
If you can remember the 2 names it is easy to remember which is which because
2 90s make 180 and
2 c's make an s (one is back to front)
does that make sense?
