Here’s the ANSWER to to last week’s math challenge
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Last week, we touted Chicago’s Noble Network of Charter Schools … specifically, its intensive math curriculum
And, we presented a challenge question (taken from the 10th grade curriculum) …
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Noble Charter HS – Math Challenge Question
The rectangle shown below is divided into four green squares, seven gold squares, four orange squares, and one blue rectangle.
If the perimeter of the blue rectangle is 20 cm, what is the perimeter of the larger rectangle?
Explain your reasoning.
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Here’s the answer …. and a method for get it.
The Homa Files 