Based on the diagram below, which expression can be used to determine the distance between Seattle, WA, and San Francisco, CA?

We have been given diagram of a triangle. We are asked to write an expression that represents the distance between Seattle and San Francisco.

We will use law of cosines to solve our given problem.

, where a, b and c are sides corresponding to angle A, B and C.

Let the distance between Seattle and San Francisco be 'c' and .

Using law of sines, we can set an equation as:

Upon taking square root in both sides, we will get:

Therefore, we can use the expression can be used to find distance between Seattle, WA, and San Francisco, CA.

step-by-step explanation:

d

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