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Mathematics 8 Online
OpenStudy (anonymous):

what degrees is a triangle

OpenStudy (precal):

the three angles of a triangle must equal 180 degrees

OpenStudy (anonymous):

thank u

OpenStudy (precal):

do you know why this is true?

OpenStudy (precal):

|dw:1357256968631:dw|

OpenStudy (anonymous):

do you know the exterior angles for polygons?

OpenStudy (precal):

|dw:1357256988176:dw|if you cut off the angles, you can place them on a straight line

OpenStudy (precal):

|dw:1357257018530:dw|

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