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hints/help for MCIV chp11 problems

 
 
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Re: hints/help for MCIV chp11 problems
WangDr. Kevin - 2020年10月9日 Friday 01:14
 

11.10: Finding the point E is the right way to go.  Instead of proving equality, you use Triangle Inequality.

11.11: Proving Ptolemy's Theorem and Simson's Theorem are equivalent.  You need to formulate the problem first.  Say you are trying to prove Simson's Theorem.  Look at the conditions of Simson's Theorem.  Use those, and apply Ptolemy's Theorem in the process (we are assuming Ptolemy's Theorem is true, and prove Simson's Theorem).  Then you need to prove the other direction: assuming Simson's Theorem is right, prove Ptolemy's.