  We report the discovery of 30 type a,b RR Lyrae (RRab) which are likely
members of the Sagittarius (Sgr) dwarf galaxy. Accurate positions, periods,
amplitudes and magnitudes are presented. Their distances are determined with
respect to RRab in the Galactic bulge found also in the MACHO 1993 data. For
R$_{\odot} = 8$ kpc, the mean distance to these stars is $D = 22 \pm 1$ kpc,
smaller than previous determinations for this galaxy. This indicates that Sgr
has an elongated main body extending for more than 10 kpc, which is inclined
along the line of sight, with its northern part (in Galactic coordinates)
closer to us. The size and shape of Sgr give clues about the past history of
this galaxy. If the shape of Sgr follows the direction of its orbit, the
observed spatial orientation suggests that Sgr is moving away from the Galactic
plane. Also, Sgr stars may be the sources of some of the microlensing events
seen towards the bulge.
