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Answer: Sin N = 
Step-by-step explanation:
Since we have given that
In triangle MPN, ∠P=90°

As we know the formula for "Trigonometric Ratios":

By Pythagorus theorem , we get

So, we get,

Hence, Sin N = 
Answer:
50 degrees.
Step-by-step explanation:
The angles of a triangle will always add up to be 180, so add and subtract to find the missing value. :)