Complete the following proof
Given: DE || BC
Angle 1 = angle 2
Prove: AB = AC

Step-by-step explanation:

statement-reason

DE=BC     - given

Angle 1= Angle 2 - given

Angle 2= Angle 3 - corresponding angles

Angle 1= Angle 4 - corresponding angles

Triangle ADE is congruent to Triangle ABC by AAS

therefore AB= AC

Q.E.D.

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step-by-step explanation:

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

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