Question

In the adjoining figure if abcd is parallelogram state the test by which dbc and abd are congruent ?
1)s-a-s
2)hypotenuse side test
3)a-a-a
4)none of this​

Answer 1

Answer:

4 non of this is correct answer

Answer 2

Given : abcd is parallelogram

To Find :   state the test by which dbc and abd are congruent

Solution:

abcd is a parallelogram

opposite sides of parallelogram are equal and parallel

hence  

            ad  = bc

           ∠adb=∠cbd     ( alternate angle )

 and   bd  = bd  is coomon

    Δbda  ≅    Δdbc   ( SAS)

( SAS)   test by which dbc and  bda are congruent

but here in the question its given

dbc and abd are congruent

which is not correct

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