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Not sure how to do 4.21

 
 
HuangPinrui的头像
Not sure how to do 4.21
HuangPinrui - 2018年10月10日 Wednesday 16:36
 

Hey guys, could you help me do 4.21? I do not understand the method to do this, and it is not related, from what I see, about right triangles. Can you guys help? Thanks.

 
ReynosoDavid的头像
Re: Not sure how to do 4.21
ReynosoDavid - 2018年10月11日 Thursday 11:26
 

Here's a hing that may help: Try to cut right triangles. The diagram used for the proof of the Pythagorean Theorem may give you an idea of where to cut.

 
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