Question

50 POINTS + BRAINLIEST TO CORRECT ANSWER!! TRIG/GEO

Answer 1

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:

$a^{2}=b^{2}+c^{2}-2 b c \cos A$

Substitute a = q, b = r, c = p and A = Q

$q^{2}=r^{2}+p^{2}-2 r p \cos Q$

If we substitute the values given, we can find q.

q = PR

$PR^{2}=r^{2}+p^{2}-2 r p \cos Q$

Hence we can find the value of PR using law of cosines.

Option C is the correct answer.

Answer 2

Answer:

It is option C

Step-by-step explanation:

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