chapter 4 deductive geometry deductive geometry is the art of deriving new geometric facts from previously known facts by using logical reasoning in elementary school many geometric facts are introduced ...
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...Chapter deductive geometry is the art of deriving new geometric facts from previously known by using logical reasoning in elementary school many are introduced folding cutting or measuring exercises not deduction but as we have seen fth and sixth grade students already practicing enjoying they solve unknownangleproblems a written argument called proof section introduces one type unknown angle proofs natural continuations stu dents experience solving problems transition small step that re quires no concepts indeed you will see almost identical to teacher s solutions wrote previous describes how congruent triangles middle congruence powerful tool opens door aspects some this covered sections these also describe about quadrilaterals learned grades revisited at higher level reach last stage preparation for high geom etry read do think part story line goes back learning measure angles lengths youwill be teaching it important know unfolds backgroundknowledge here list our disposal point used...