CHALLENGE 1
The cylinder has been meshed accordingly.
Element size
the element size has been set to 1 unit using;
Perimeter ----> Length ----> 1 unit.
i used the box around the cylinder to select it for setting the element size.
the distance between the nodes are checked to verify the element size.
Top panel----> Measure tool ---->nodes ----> {select a node and the adjacent node}
Meshing
then i used the mesh generasation tool to mesh.
mesh generate--->Spot mesh----> { select the tria, and reconstruction}----> create a box in the region----> {then generate mesh}
Mesh check is conducted to verify the mesh.