New tab x | all jl? uwbig jew plus (44) X / Kepler's Laws Part 1 Lab Activity X VAL Astronomical Unit - AST111, x + O X C & https://www.webassign.net/web/Student/Assignment-Responses/last?dep=32373268 ... This activity invites us to explore how astronomers could use one well-known distance on Earth-the separation between two observing sites-to place a "ruler" of known size on the Sun. This step is essential to working out how arge the Sun really is. Once you know that, you can work out how far away the Sun is, since we know how large the Sun looks as seen from Earth. Consider the diagram below and the related formula, derived in the previous section, Earth Venus Sun dl O dobserved Rvenus K REarth dobserved REarth - Rvenus dobserved REarth - Rvenus Rvenus where the symbols are as follows. REarth distance from Earth to Sun Rvenus distance from Venus to Sun d distance between observing sites on Earth dobserved distance between Venus transit paths on Sun (a) Suppose Venus is halfway between the Earth and Sun (that is, Rvenus = Earth/2). What then would be true about the two similar triangles on the above diagram-the triangles whose tips touch and whose bases are on the Earth and Sun, respectively The one on the left (attached to Earth) will be larger. O They will be the same size. O The one on the right (attached to the Sun) will be larger. 91OF 6:01 PM Partly sunny Q Search 9/13/2023E E Newtab > dobs Q d = dobs Q d dob: Q d = debs 0 d dobs O d=dobs q t, d