Question

Find the value of x.

A.
7
B.
9
C.
11
D.
12

Answer 1

Use the law of cosines to solve for angle A. Plug your known side length values into the equation a^2 = b^2 + c^2 – 2bc cos A.

Then use the law of sines to find angle B. (Sin A/a = Sin B/b = Sin C/c).

Because the two red angles within B are congruent, divide your angle measure in half.

From there, do the law of sines to solve for x. Good luck!

I hopes this helps

Answer 2

Answer: B. 9

Step-by-step explanation:

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