by kelvin du - Wednesday, October 10, 2018, 4:49 PM
How do you do 4-21 for Math Challenge I-B
Re: MC I-B #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.
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