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Mathematics 7 Online
OpenStudy (anonymous):

Help please!!! I give medal and fan Write an indirect proof proving the two non-right angles of a right triangle measure less than 90°.

OpenStudy (anonymous):

See, if you have a triangle, which is already consisting of a 90 degree angle, you can't have another angle which is greater than 90, otherwise the sum would be greater than 180, and that is not possible for a triangle. Therefore, for any right angled triangle, the two other sides must be smaller than 90.

OpenStudy (anonymous):

thank you so much your a total life saver do mind help me with a few more?

OpenStudy (anonymous):

Sure. :)

OpenStudy (anonymous):

omg thank u :D Prove the diagonals of a parallelogram bisect one another. Be sure to create and name the appropriate geometric figures.

OpenStudy (anonymous):

its an indirect proof, so 3 steps :- 1) you start wid the opposite of wat u need to prove 2) arrive at a contradiction 3) conclude

OpenStudy (anonymous):

I don't understand sorry im a little confused

OpenStudy (anonymous):

@Extraordinaire plz help me

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