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In DeltaLMN, angleL=60^@,angleM=50^@ and...

In `DeltaLMN, angleL=60^@,angleM=50^@` and `DeltaLMN~DeltaPQR` then `angleR`=……..

A

`70^@`

B

`80^@`

C

`90^@`

D

None

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