In △NOP,p=490 inches, m∠N=57∘ and m∠O=55∘. Find the length of n, to the nearest inch.
443
Step 1 :Find angle P: 180−57−55=68∘
Step 2 :Use Law of Sines to find side n: nsin57∘=490−nsin55∘
Step 3 :Solve for n: n≈443
Step 4 :443