In ΔNOP, n = 910 inches, o = 110 inches and p=820 inches. Find the measure of ∠P to the nearest degree.

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°.

33° is the answer.

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1.8 or

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step-by-step explanation: