How can I cut the board into only two pieces so that they will fill the hole exactly? ( Math Puzzle )

मैं बोर्ड को केवल दो टुकड़ों में कैसे काट सकता हूं ताकि वे छेद को ठीक से भर दें ?

How can I cut the board into only two pieces so that they will fill the hole exactly? ( Math Puzzle )

Answer :- here are perfect solution of this question, if you have any other answer than comment below. 

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