<PRE><B>Question 1032489</B>
3^2-1.5^2=
9-2.25=6.75
sqrt 6.75=2.6 height
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A=(l*h)/2
A=(3*2.6)/2
A=3.89 sq cm one triangle
A for the hexagon=3.89*6=23.38 sq cm 
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I did it a little different, but I got the same answer.
Good luck with math</PRE>