Option C:
We can find the value of PR using law of cosines.
Solution:
Given data:
∠Q = 18°, r = 9.5, p = 6.0
To find which length could be find in the triangle:
Law of cosines:
[tex]a^{2}=b^{2}+c^{2}-2 b c \cos A[/tex]
Substitute a = q, b = r, c = p and A = Q
[tex]q^{2}=r^{2}+p^{2}-2 r p \cos Q[/tex]
If we substitute the values given, we can find q.
q = PR
[tex]PR^{2}=r^{2}+p^{2}-2 r p \cos Q[/tex]
Hence we can find the value of PR using law of cosines.
Option C is the correct answer.
Answer:
It is option C
Step-by-step explanation:
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