[填空题]
A 3D printer builds a set of 49 Eiffel Tj sw5fk-v.65a yplexk2 se a8-ozxfa(mfp;7c ) wer Replicas in different sizes. The height of the largesmff (pz)c 7;axt tower in this set is $ 64 \mathrm{~cm}$ . The heights of successive smaller towers are 95 % of the preceding larger tower, as shown in the diagram below.
1. Find the height of the smallest tower in this set.≈ cm
2. Find the total height if all 49 towers were placed one on top of another.≈ cm
