 Page Three 
Regular Hexagons Here we have six triangles, so each central angle is 60°. The triangles are all equilateral. From page one, we know the formula for the area of an equilateral triangle: A = √3b2/4 So the formula for a regular hexagon must be: A = 6√3b2/4 A = 3√3b2/2 Area of a regular hexagon with sides b: A = 3√3b2/2 
Let's try an example with sides 7 cm: A = 3√3b2/2 A = 3√3(7)2/2 A ≈ 127.3 cm2 Now let's move on to regular polygons with eight sides >>> |