Answer: The actual length and actual width of the ellipse are 2.12 cm and 2.65 cm.
Step-by-step explanation:
Since we have given that
The scale of mars is
[tex]1\ cm:9.4\ km[/tex]
since we know that the dimension of ellipse is
[tex]20\ km\ by\ 25\ km[/tex]
so, According to scale,
[tex]1\ cm=9.4\ km\\\\1\ km=\frac{1}{9.4}\ cm\\\\20\ km=\frac{20}{9.4}\ cm\\\\20\ km=2.12\ cm[/tex]
Similarly,
[tex]1\ cm=9.4\ km\\\\1\ km=\frac{1}{9.4}\ cm\\\\25\ km=\frac{25}{9.4}\ cm\\\\25\ km=2.65\ cm[/tex]
Hence, the actual length and actual width of the ellipse are 2.12 cm and 2.65 cm.