Calculate the apothem, perimeter and area of a regular hexagon inscribed in a circle with a radius of 4 cm. P = 6 Â· 4 = 24 cm. The area of a square is 2,304 cmÂ². Calculate the area of a regular hexagon that has the same perimeter as this square.
A crane is a type of machine, generally equipped with a hoist rope, wire ropes or chains, and sheaves, that can be used both to lift and lower materials and to move them horizontally.
Cranes provide less flexibility in movement than industrial trucks because they only can operate within a restricted area. Most cranes utilize trolley-and-tracks for horizontal movement and hoists for vertical movement, although manipulators can be used if precise positioning of the load is required.