Please help :/ What is the similarity ratio of the top triangle to the lower triangle? Write your answer as a fraction in simplest form a/b.​

a/b=e/f

Step-by-step explanation:

a/b=3.5

f/e=2.5

ab/fe=3.5/2.5

ab/fe=1.4

Bc=ed

bc/ed=6.3/4.5

Bc/ed=1.4

Ac=fd

Ac/fd=8.4/6.0

Ac/fd=1.4

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)