Which of the following statements, when taken alone, could be used to prove that mep and def are similar?
select all the apply

a: angles pme is congruent to angle fde by corresponding angles

b: angles e is congruent to itself for both triangles

c: me/de=pe/fe

d: the triangles are dilated by a scale factor centered at point e

e: the scale factor is proportional

f: mp is parallel to df

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

answer is 1

step-by-step explanation:

answer: as the alternate interior angles are congruent, the opposite

sides of quadrilateral abcd are parallel.

step-by-step explanation:

so, the missing phrase in elba's proof is: alternate

interior angles

let's break this statement up so we can find the answer:

by cpctc, angle abd is equal to angle cdb and angle adb is

equal to angle cbd.

since

angle abd is equal to angle cdb, this means that they are alternate interior angles

so, the correct answer would be: as the alternate interior angles are congruent, the opposite

sides of quadrilateral abcd are parallel.

two interior angles which lie on opposite sides of a

transversal   and on different parallel

lines and are called alternate interior angles.