Number Sense Geometry Grades 7–HS

HDTV Surprise!

Posted 2023-11-20 09:44:30

 

How were your holidays?  Your school vacation?  Mine was good. I surprised my family with this HDTV, which I wrapped and hung on our wall.  The size of an HDTV is determined by the length of its diagonal. What size HDTV could this be?  Knowing that HDTV dimensions follow a 16:9 ratio (L & W), do you think this could be an HDTV?  No scale is provided, how can you make your own?  Note: This task can be solved with or without the use of the Pythagorean Theorem.  


Activity Solutions & Supporting Materials

Common Core standards

7.G.1 7.RP.3 8.G.7

Topics

proportion ratio Pythagorean Theorem scale HDTV HSG-SRT.C.8

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