Online Course Discussion Forum

Not sure how to do 4.21

Picture of Pinrui Huang
Not sure how to do 4.21
by Pinrui Huang - Wednesday, October 10, 2018, 4:36 PM

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.

Picture of David Reynoso
Re: Not sure how to do 4.21
by David Reynoso - Thursday, October 11, 2018, 11:26 AM

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.