Question

plzzz answer as quick as possible congruency chapter​

Answer 1

Answer:

Step-by-step explanation:

In triangle ABC and ADC

ad=bc             given

ac=ac              common

angle DAC= angle BCA            alternate interior angle

so, triangles are congruent by sas

ab=dc (cpct)

alternate method:

ad=bc, ad║bc

one pair of opposite sides are equal and parallel

hence abcd is a parallelogram

so, ab=cd because opposite sides are equal in a parallelogram

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