Mathematics, 04.11.2019 10:31 iamsecond235p318rq

Given: ad ≅ bc and ad ∥ bc prove: abcd is a parallelogram. statements reasons 1. ad ≅ bc; ad ∥ bc 1. given 2. ∠cad and ∠acb are alternate interior ∠s 2. definition of alternate interior angles 3. ∠cad ≅ ∠acb 3. alternate interior angles are congruent 4. ac ≅ ac 4. reflexive property 5. △cad ≅ △acb 5. sas congruency theorem 6. ab ≅ cd 6. ? 7. abcd is a parallelogram 7. parallelogram side theorem what is the missing reason in step 6?

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Answer from: taniyahbenyamin2

Given: AD ≅ BC and AD ∥ BC

Prove: ABCD is a parallelogram.

Statements Reasons

1. AD ≅ BC; AD ∥ BC 1. given

2. ∠CAD and ∠ACB are alternate interior ∠s 2. definition of alternate interior angles

3. ∠CAD ≅ ∠ACB 3. alternate interior angles are congruent

4. AC ≅ AC 4. reflexive property

5. △CAD ≅ △ACB 5. SAS congruency theorem

6. AB ≅ CD 6. Corresponding Parts of Congruent triangles are Congruent (CPCTC)

7. ABCD is a parallelogram 7. parallelogram side theorem

Answer from: simran1049

Given: It is given that $AD \cong BC$ and $AD \parallel BC$ .

To Prove: ABCD is a parallelogram.

Statements

1. $AD \cong BC$ and $AD \parallel BC$

Reason: Given

2. $\angle CAD, \angle ACB$ are alternate interior angles

Reason: Def of alternate interior angles

3. $\angle CAD \cong \angle ACB$

Reason: Alternate interior angles are congruent

4. $AC \cong AC$

Reason: Reflexive property

5. $\Delta CAD \cong \Delta ACB$

Reason: SAS congruency theorem

6. $AB \cong CD$

Reason: Corresponding Parts of Congruent triangles are Congruent (CPCTC)

7. ABCD is a parallelogram

Reason: Parallelogram Side Theorem

Answer from: Quest

$12. that is my answer.

Answer from: Quest

the probability that a bird is green (.30) is true

step-by-step explanation:

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Given: ad ≅ bc and ad ∥ bc prove: abcd is a parallelogram. statements reasons 1. ad ≅ bc; ad ∥ bc...