Draw the triangle and then use Pythagoras' theorem
distance =
= 19.70 (2dp)
distance =
= 19.70 (2dp)
51 divided by 2,306.2
2 answers:
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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:
Substitute a = q, b = r, c = p and A = Q
If we substitute the values given, we can find q.
q = PR
Hence we can find the value of PR using law of cosines.
Option C is the correct answer.