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what is a supplementary angle?

http://www.mathsisfun.com/geometry/supplementary-angles.html

Thank you but do you think you could tell me what it is? My computer will make me exit out of internet when i go on the website you wrote i should go to. If you could it would help me so much!

never mind i got it now

Supplementary Angles
Two Angles are Supplementary if they add up to 180 degrees.

These two angles (140° and 40°) are Supplementary Angles, because they add up to 180°.

Notice that together they make a straight angle.

-- from the Math is Fun website.

oh okay thank you i just realized that i can just tyoe it in instead. Thank you for helping me. I would like to ask, you are so good at helping students why don't you teach anymore?

I don't teach any more (for pay) because I retire after 32 years of teaching. That's enough, don't you think? <g>

Besides, I'm now 77 years old.

oh but thanks for helping me

You're very welcome.

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