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Math Chanllenge I-B Geometry

 
 
Picture of Hongyu Shi
Math Chanllenge I-B Geometry
by Hongyu Shi - Wednesday, 23 October 2019, 8:10 AM
 

I'm not sure about the meaning of "[ABCDEF]" in question 5.26

 
Picture of David Reynoso
Re: Math Chanllenge I-B Geometry
by David Reynoso - Wednesday, 23 October 2019, 10:42 AM
 

On geometry problems we use square brackets to denote area. So $[ABCDEF]$ denotes the area of polygon $ABCDEF$.

 
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