3 points 2a. Susan ran 2.75 miles in 1/4 of an hour. How fast was she traveling in
miles per hour?*
0.6875 mph
1.46 mph
11 mph
12 mph

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

the train arrives at 20: 27 hope i

here the answers ur welcome also plz mark as brainliest if someone else anwers