Solve for x? Show the equation you used and your work. Geometry Congruence Triangle Congruence 1 Answer Cesareo R. Jan 17, 2017 See below. Explanation: Supposing that #[VW] # is parallel to # [SU]# then the Thales of Miletus theorem can be applied #[ST]/[VT]=[UT]/[WT] # so #(6+14)/14=((x+4)+21)/21# then #x=(20 cdot 21)/14-25# Answer link Related questions What do AAS, SSA, SAS, and SSS stand for in geometry? Why can't you prove triangles congruent by using side-side-angle? Why does the sss postulate work? Question #42ce6 #triangleABC# is isosceles, where AB=BC. If #m angleA= 5x+ 30# and #mangleB= 2x#, then how do... Question #2ac09 The #DeltasABC# and #FGH# shown below are similar. Find #bar(FH)#? Given the 2 sets of figures below, are the pairs of triangles similar for both set a and set b?... Properties of triangles? See all questions in Triangle Congruence Impact of this question 3350 views around the world You can reuse this answer Creative Commons License