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GEOMETRY PROOFS HELP NEEDED ASAP!!!!!!! I have three proofs to write and I'm just so confused as to where to start: 1) Prove that the base angles of an isosceles triangle are congruent. Be sure to create and name the appropriate geometric figures. 2) Prove the diagonals of a parallelogram bisect one another. Be sure to create and name the appropriate geometric figures. 3)Write an indirect proof proving the two non-right angles of a right triangle measure less than 90°.

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