Respuesta :
Answer:
Heather can use option DA≅BC
Step-by-step explanation:
Here, Using Angle-Side-Angle theorem
Δ DTA ≅ ΔBTC
Alternate angles are:
∠ TDA ≅ ∠ TBC
∠ DAT ≅ ∠ BCT
So, using Parallelogram property:
DA≅BC
Hence, answer is option third.
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