the hexagon has an apothem a=9.
so, its sides are s=6√3
Now, you know how to find the area of a hexagon of side s.
The area A of the pyramid is just A=6(sa/2)
The volume is 1/3 (area of hexagon)*42
A regular hexagonal pyramid has a perpendicular height of 42.0mm.If the distance across the flats of the hexagonal base is 18m find the volume and the lateral surface area of the pyramid.
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