Given: AB ≅ CD and AD ≅ BC Prove: ABCD is a parallelogram.

Quadrilateral A B C D is shown. A diagonal is drawn from point A to point C. Sides A B and D C are congruent. Sides A D and B C are congruent.

Statements

Reasons
1. AB ≅ CD;AD ≅ BC 1. given
2. AC ≅ AC 2. reflexive property
3. △ADC ≅ △CBA 3. ?
4. ∠DAC ≅ ∠BCA; ∠ACD ≅ ∠CAB 4. CPCTC
5. ∠DAC and ∠BCA are alt. int. ∠s;
∠ACD and ∠CAB are alt. int. ∠s 5. definition of alternate interior angles
6. AB ∥ CD; AD ∥ BC 6. converse of the alternate interior angles theorem
7. ABCD is a parallelogram 7. definition of parallelogram
What is the missing reason in step 3?

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

idk

step-by-step explanation:

idk

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