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In DeltaABC, angleA=30^@ , angleB =40^@ ...

In `DeltaABC, angleA=30^@ , angleB =40^@` and `angleC= 110^@` . In `DeltaPQR, angleP =30^@, angleQ= 40^@` and `angleR =110^@`. A student says that `DeltaABC ~=DeltaPQR` by AAA congruence criterion. Is he justified ? Why or why not?

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The correct Answer is:
We can't say `Delta ABC ~= Delta PQR ` when the corresponding angles are equal , but can say that the triangles are simlar
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