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January 30, 2015

January 30, 2015

Posted by **Henry** on Monday, December 12, 2011 at 9:15pm.

1. given hexagon ABCDEF with diagonal AC being 2 calculate the area and perimeter of the hexagon.

2. the perimeter of an equilateral triangle is equal to its area. find the side length

- geometry -
**Anonymous**, Tuesday, December 13, 2011 at 10:12amDraw line BF, perpendicular to AC

/_GAC = 30º and /_ABG = 30º

AG = GC = 1

AB=1/cos30º=2/sqrt3 BC = CD = DE = EF = FA

BG = ABsin30º = 1/sqrt3

Perimeter P = 6AB

Area = (2)/sqrt3 + 2(2)/sqrt3

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