Based on the given information and the algebraic and geometric properties presented or proven thus far, choose the congruence theorem that could be used to prove the triangles congruent. if it is not possible to prove the triangles are congruent, choose "not possible".
sss
sas
ssa
not possible

The correct option is 2.

Step-by-step explanation:

Given information: DC║AB, DC=AB.

If a transversal line intersect two parallel lines, then the alternative interior angles are equal.

In triangle ABC and CDA,

                         (Given)

                      (Alternative interior angles)

                            (Common side)

Two corresponding sides and their including angle are equal.

By SAS postulate of congruent triangles,

Since both triangles are congruent by SAS postulate, therefore the correct option is 2.

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

step-by-step explanation: