A hexagonal pyramid of base side 25 mm and axis 60 mm rests on its base on the HP with two base edges perpendicular to VP. It is cut by a plane perpendicular to VP and inclined at 30 deg to the HP meeting the axis at 25 mm from the vertex.. Draw the elevation sectional plan and the true shape of the section ? What is the maximum true length of the side in the section of the pyramid?