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OpenStudy (anonymous):
Write an indirect proof proving the two non-right angles of a right triangle measure less than 90°.
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OpenStudy (anonymous):
I have no idea how to do this. Can someone please help?
OpenStudy (anonymous):
@zepdrix Do you know how to do this?
zepdrix (zepdrix):
|dw:1402008135484:dw|So I'm thinking like.... If we can show that the interior angles of a triangle sum to 180 degrees. And if angle A is greater than 0, then it's less than 90 (because B took the other 90). and the same can be applied to angle C.
OpenStudy (anonymous):
Oh! I get it now! :D Thank you so much!
zepdrix (zepdrix):
Oh you can do it from there? XD hah cool
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