(Solved): 1 A cuboid ABCDEFGH with dimensions 6m - by 6m by 10.5m is shown in the diagram below. Sketch ...

1 A cuboid ABCDEFGH with dimensions $6\mathrm{m}$ - by $6\mathrm{m}$ by $10.5\mathrm{m}$ is shown in the diagram below. Sketch the cuboid and mark the angles described below. Find: a the length of [DF] b the size of the angle between [DF]' and base $\mathrm{ABCD}$ c the size of the angle between [DF] and face DCGH.