Appreciated is △dbe similar to △abc ? if so, which postulate or theorem proves these two triangles are similar?△dbe is similar to △abc by the sas similarity theorem . △dbe is similar to △abc by the ssa similarity theorem . △dbe is similar to △abc by the sss similarity theorem . △dbe is not similar to △abc .

If I have correct image with myself then DB=10,BE=16,AD=15,EC=24
 Now if we check we can see â B is common between two triangle
 now DB/AB=2/5
 and BE/BC=2/5
 As DB/AB=BE/BC
 So By SAS Similarity Side-angle-side similarity. When two triangles have corresponding angles that are congruent and corresponding sides with identical ratios, the triangles are similar.
DBE similar to ABC