For 4 weeks Paula and her sister looked for seashells on the beach. In the first week Paula collected 50 seashells and her siste
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Given:
In ΔNOP, n = 910 inches, o = 110 inches and p=820 inches.
To find:
The measure of ∠P to the nearest degree.
Solution:
According to the law of cosine:
Using law of cosine in triangle NOP, we get
Putting the given values, we get
Taking cos inverse on both sides, we get
Therefore, the measure of ∠P is 33°.