" Explain,why "Delta ABC[-=-?]Delta FED

Explain,why Delta ABC[-=sim?]Delta FED

In Delta ABC .

In a Delta ABC

If Delta ABC[-~=?]Delta FED under the correspondence ABC harr FED, write all the correspondence ABC harr FED, write all the correngles. triangles.

If Delta ABC [\_cong?] Delta FED under the correspondence ABC leftrightarrow FED , write all the corresponding congruent parts of the triangles.

It is given that Delta ABC - Delta PQR , with (BC)/(QR) = (1)/(4) . Then (ar Delta PQR)/(ar Delta ABC) is equal to:

In that figure, if Delta ABE ~= Delta ACD , show that Delta ADE ~= Delta ABC .

In figure, ABC and BDE are two equilateral triangles such that D is the mid-point of BC. If AE intersects BC at F, show that ar( Delta BFE) = 2 ar( Delta FED)